Fuel economy takes on a different meaning with electric vehicles and plug-in powertrains, where EPA MPGe provides a common way to compare energy use. The 2027 model-year figures supplied by MPG Buddy show just how efficient the latest vehicles can be. Subaru leads the list with the Uncharted at 129 MPGe, followed closely by the Audi A6 e-tron ultra at 127 MPGe and Mercedes-Benz CLA250+ at 126 MPGe.
The list also includes several versions of the same models, since wheel size, drivetrain, and trim can affect efficiency. From compact EVs to larger luxury vehicles, these 30 entries demonstrate how much efficiency can vary even within the same model family.
1. Subaru Uncharted
Topping the chart is the Subaru Uncharted at 129 MPGe, the highest score among all 30 entries. It leads the runner-up by 2 points and the last-placed models by 24.
MPGe works like a fuel economy rating for electric driving. It compares the energy a vehicle consumes with the energy contained in one gallon of gasoline, so a higher figure means each unit of energy takes you farther. Most entries here fall between 105 and 120, which makes 129 stand out.
Consider two neighbors who cover the same distance every week. The one with the better score spends less energy on those trips, and the savings grow with each journey to the office, the school, or the market.
A word of caution, however. Subaru has seven entries in this ranking, and the Uncharted appears three times, at 129, 117, and 112. Only one version earns the headline figure, so confirm with the dealer which configuration it is before getting excited.
2. Audi A6 e-tron ultra
Sitting right behind the leader is the Audi A6 e-tron ultra at 127 MPGe, only 2 points short of first place. That small margin earns Audi the silver medal in this ranking.
The word “ultra” suggests a version tuned for efficiency, although the data gives only the score and does not describe what is different.
Audi appears four times here, with scores of 127, 117, 111 and 105. A spread of 22 points is the widest for any brand family on the list, so the exact version matters greatly.
Imagine going to a showroom and asking for an A6 e-tron. Depending on the version you are shown, the efficiency score could differ by more than 20 points, which is quite a gap for cars carrying almost the same name.
Anyone who values efficiency should therefore look beyond the badge. Ask for the full name of the version, then check its EPA rating on the window sticker before paying.
3. Mercedes-Benz CLA250+
In third place is the Mercedes-Benz CLA250+ with 126 MPGe, only 3 points behind the Subaru Uncharted. The top three are packed tightly together.
A little arithmetic helps here. First to third is a span of just 3 MPGe, but third to the bottom of the list is 21. The leaders cluster at the front, and the rest spread out behind them.
Mercedes has three entries in the ranking. The CLA250+ scores 126, the CLA350 4MATIC scores 118, and the CLA250+ Plus scores 109. That creates a 17-point difference within the same model family.
This matters because a salesman may say “the CLA” as though it were a single car with a single score. It is not. Each trim carries its own rating, and the gap can change how far you travel on the same energy.
When shopping, compare exact versions rather than nameplates, and ask to see the rating for the one you want. One short question can spare you long regret.
4. Chevrolet Bolt
Arriving at 120 MPGe, the Chevrolet Bolt shares fourth place. It is a step below the top three, which all score 126 or more, so a visible gap appears at this point.
Even so, 120 is a strong figure. Only the Subaru Uncharted, the Audi A6 e-tron ultra and the Mercedes-Benz CLA250+ score higher, which places the Bolt firmly in the upper tier.
Chevrolet appears just once, so there are no confusing sub-versions to sort through. For buyers who dislike navigating long lists of trim names, that simplicity is a welcome advantage. Compared with a brand that has five entries spread across 13 points, the Bolt offers a single number that buyers can easily factor into their decision.
Efficiency is not everything, of course. Space, comfort, price, and the feel of the vehicle on your own roads all deserve attention. Treat 120 MPGe as a good starting point, then take a test drive to see whether the rest of the package suits you.
5. Subaru Solterra AWD
Also in fourth place, at 120 MPGe, is the Subaru Solterra AWD. A tie such as this is interesting, since two very different vehicles end up with the same score.
Choosing between them will depend on other factors, because efficiency cannot break the tie. Consider the space you need, your budget and how each one feels on the road. A short spin around the car park tells you far less than a drive along your usual route.
Subaru has seven entries here, more than any other brand, which gives plenty of choice but also more room for confusion. The Solterra alone appears twice, the AWD at 120 and the Solterra 20 AWD at 117.
Three points may seem insignificant on paper, yet they can add up for anyone who drives long distances every week. Consider a daily commute repeated five days a week for 50 weeks. That small difference becomes significant when repeated throughout the year.
Before deciding, ask the dealer exactly which version you are sitting in, and compare the rating on the sticker.
6. BMW iX3 50 xDrive
The BMW iX3 50 xDrive records 118 MPGe, putting it sixth. Its rating is 2 MPGe below the Chevrolet Bolt and Subaru Solterra AWD.
BMW’s entry adds a premium SUV to the upper portion of the list. The iX3 combines the utility associated with an SUV with electric propulsion and a high EPA efficiency figure.
The xDrive designation indicates an all-wheel-drive configuration, making the 118 MPGe result particularly useful for shoppers who want traction capability without moving away from an efficient EV.
The iX3 also appears later with different tire configurations, each rated at 105 MPGe. That difference demonstrates why shoppers should check the exact specification rather than relying solely on a model name.
At 118 MPGe, this particular iX3 configuration remains firmly among the most efficient vehicles in the supplied 2027 lineup.
7. Mercedes-Benz CLA350 4matic
The Mercedes-Benz CLA350 4matic delivers 118 MPGe, tying the BMW iX3 50 xDrive. Both vehicles therefore share the sixth-place efficiency figure in this compilation.
The CLA350 4matic brings another premium all-wheel-drive configuration into the upper ranks. Its 118 MPGe rating indicates that buyers can combine a luxury-oriented vehicle with a very strong energy-efficiency result.
That figure is 8 MPGe below the Subaru Uncharted but 13 MPGe above the lowest-rated vehicles in the supplied top 30. The CLA350’s placement also provides useful context for the other Mercedes-Benz entries.
The CLA250+ appears at both 126 and 109 MPGe depending on configuration, showing that efficiency can vary within the same vehicle family.
For shoppers, the exact version matters. The CLA350 4matic listed here earns its seventh-place position through its 118 MPGe EPA figure.
8. Audi A6 e-tron quattro ultra
The Audi A6 e-tron quattro ultra reaches 117 MPGe, placing it eighth. Its rating is 10 MPGe below the standard A6 e-tron ultra that sits second.
That difference illustrates how drivetrain specifications can have a measurable effect on EPA efficiency. The quattro ultra version provides a different configuration while remaining highly efficient.
The 117 MPGe result also puts this Audi ahead of several vehicles that follow it by only a few points. This section of the ranking is tightly grouped, with many models sitting between 114 and 118 MPGe.
For buyers considering the A6 e-tron family, the figures make the configuration choice especially relevant. A version with a different drivetrain can carry a different EPA rating even when the basic vehicle name remains familiar.
The quattro ultra still posts a strong result and comfortably earns a place among the 10 most efficient vehicles listed here.
9. Kia EV3 Long Range
The Kia EV3 Long Range achieves 117 MPGe, matching the Audi A6 e-tron quattro ultra. That puts it ninth in this ranking and gives Kia a strong showing among the most efficient 2027 vehicles.
The Long Range version is particularly interesting because buyers often associate greater driving range with increased energy consumption. Here, the supplied EPA figure remains high despite the configuration’s focus on range.
A 117 MPGe rating places the EV3 only 12 MPGe behind the leading Subaru Uncharted. It also puts the Kia ahead of many larger and more expensive electric vehicles in the list.
The EV3’s presence near the top shows that efficiency can be a major selling point for a smaller EV. For drivers who want to use less energy while maintaining useful range, this configuration deserves attention based on the supplied figures.
10. Subaru Solterra 20 AWD
The Subaru Solterra 20 AWD records 117 MPGe, tying the Kia EV3 Long Range and Audi A6 e-tron quattro ultra.
This particular Solterra configuration demonstrates how wheel selection can affect EPA efficiency. The supplied data separates the 20-inch AWD version from other Solterra entries, rather than treating every configuration as identical.
That distinction is useful for shoppers because wheel size can affect energy consumption. A vehicle can retain the same basic powertrain while receiving different efficiency figures depending on its equipment.
At 117 MPGe, this Solterra remains highly competitive. It is only 12 MPGe below the top-ranked Subaru Uncharted and sits well above the 105 MPGe figures recorded by several configurations near the bottom of this list.
The result gives Subaru another strong position among the most efficient 2027 vehicles.
11. Subaru Trailseeker AWD
With 117 MPGe, the Subaru Trailseeker AWD ties the vehicles just above it. Judging by the name, it was built with outdoor lovers in mind, so a good efficiency score is a welcome extra for anyone who heads to the hills on weekends.
Two Trailseeker versions appear in this ranking. The AWD version scores 117, while the 20-inch version scores 114. As with other entries, the version identified by its wheel size scores lower than its sibling. The data does not explain why, but the pattern is difficult to ignore.
Think of it this way. A driver who admires larger wheels may be ready to accept a small drop in efficiency. Another who wants every possible mile should look at the higher-scoring version.
Adventure and efficiency can sit together, provided you watch the details that move the numbers. Before settling on a configuration, check its rating, compare the alternatives, and pick the one that matches your taste and your travel habits.
12. Subaru Uncharted AWD
Another Uncharted appears here, and this one is the AWD at 117 MPGe, which is 12 points under the best Uncharted at 129. A gap that wide shows once again that a model name alone cannot tell you the score.
The three Uncharted scores of 129, 117, and 112 reveal a 17-point difference between the highest and lowest results. This is the largest score gap among the Subaru models featured on this list.
For a buyer, this means “Uncharted” is a family name and not a single rating. Each version has its own figure, and the difference can change how you feel about your energy use.
Consider two friends who each bought an Uncharted. The first read the label and chose the 129 version. The second took the first car on the lot and landed on 112. They bought the same name from the same showroom, yet their numbers are far apart.
If this vehicle interests you, kindly ask the dealer which version carries which rating. A few questions at the start can save you a nasty surprise later.
13. BMW i5 eDrive40
Scoring 116 MPGe, the BMW i5 eDrive40 falls only 1 point short of the 117 group. As a luxury pick, it gives up very little efficiency, which should please anyone who wants comfort and low energy use together.
Consider where it sits. The i5 is in the middle of the ranking, ahead of 17 entries and 13 points behind the leader. For a luxury vehicle, that is a respectable showing.
There is one catch, though. A 20-inch version of the same car appears further down at 106, which is 10 points lower. Same car, different wheels, very different number. It is one of the clearest examples of how a single option can change an efficiency score.
Imagine standing in a showroom before two i5s that look almost the same, one on standard wheels and the other on larger ones. Styling alone might push you to the second car, but the rating shows what that choice costs.
Ask for this one by its full name, and confirm the figure on the window sticker before you sign.
14. Hyundai Ioniq 5 Standard Range
The Hyundai Ioniq 5 Standard Range posts 115 MPGe, taking 14th place. Its rating is only 1 MPGe below the BMW i5 eDrive40.
The Ioniq 5 appears several times in this ranking, and each configuration has a different efficiency figure. That makes this Standard Range version especially easy to distinguish from the other entries.
At 115 MPGe, it remains highly efficient while sitting just 14 MPGe below the Subaru Uncharted’s leading figure.
The rating also demonstrates that Hyundai has a strong presence among the most efficient 2027 EVs. The Ioniq 5 combines its distinctive design with an EPA figure that places it comfortably within the upper half of this list.
For shoppers comparing versions, the Standard Range specification carries the 115 MPGe rating supplied here.
15. Kia EV3 Standard Range
The Kia EV3 Standard Range comes in at 115 MPGe, tying the Hyundai Ioniq 5 Standard Range for 14th place.
Its matching figure creates another useful comparison between two different electric models. Both reach the same EPA efficiency rating despite being separate vehicles with different designs and equipment.
The Standard Range EV3 also sits 2 MPGe below the Long Range version listed earlier at 117 MPGe. That makes the two EV3 configurations relatively close in efficiency according to the supplied data.
A shopper comparing the versions can therefore consider other priorities alongside MPGe, since the efficiency difference is modest.
At 115 MPGe, this EV3 remains one of the more efficient vehicles in the 2027 compilation and comfortably exceeds the 105 MPGe figures recorded by several entries near the bottom.
16. Hyundai Ioniq 5 RWD
The Hyundai Ioniq 5 RWD earns 114 MPGe, placing it 16th. Its figure is 1 MPGe below the Ioniq 5 Standard Range and 2 MPGe below the Kia EV3 Standard Range.
The rear-wheel-drive configuration gives shoppers another version of the Ioniq 5 to consider. The supplied figures show that drivetrain and trim details can produce measurable differences in EPA efficiency.
At 114 MPGe, this Ioniq 5 remains firmly in the higher-efficiency portion of the list. It is only 15 MPGe behind the Subaru Uncharted at the top.
The small gap between several entries also shows how competitive modern EV efficiency can be. Multiple vehicles occupy a narrow band between 110 and 117 MPGe.
For the Ioniq 5 RWD, that 114 MPGe figure places it ahead of the Trailseeker 20-inch version and several luxury EV configurations.
17. Subaru Trailseeker 20-inch
The Subaru Trailseeker 20-inch records 114 MPGe, tying the Hyundai Ioniq 5 RWD.
The 20-inch designation makes this entry especially useful for understanding how wheel equipment can influence EPA figures. The standard Trailseeker AWD reaches 117 MPGe, while this version is listed at 114 MPGe.
A 3 MPGe difference may not seem dramatic, but it shows why precise configuration details matter when shoppers compare efficiency numbers.
The Trailseeker 20-inch still ranks well within this group. Its 114 MPGe figure places it ahead of the Subaru Uncharted 20-inch version at 112 MPGe and several other configurations below.
For a buyer considering larger wheels, the data points to a simple tradeoff. The 20-inch Trailseeker has a slightly lower EPA efficiency rating than the AWD version listed earlier.
18. Volvo EX60 P6
At 113 MPGe, the Volvo EX60 P6 makes its first appearance on the chart. Volvo has only two entries here, and they sit close together, so comparing them is easy.
The second one, the EX60 P10, scores 110. A gap of 3 points is not dramatic, so you are really choosing between two good options, with the P6 holding a slight edge in efficiency.
Picture a buyer trying to decide between the two. She would probably want to know what else each version offers apart from its score. The data here cannot say, so check the full specifications or ask a dealer.
Rankings like this are meant to start your research, not to end it. If efficiency matters most to you, go for the P6. If the P10 has a feature you want badly, accept the small gap.
You lose little either way, since both sit in the middle of the list.
19. Subaru Uncharted 20-inch
Scoring 112 MPGe, the Subaru Uncharted 20-inch is the weakest of the three Uncharted entries. Set it beside the top version at 129, and you will see a 17-point difference, even though the model name is the same.
If there is one lesson in this list, it is that trims, wheels, and drivetrains affect efficiency far more than most buyers expect.
Here are the figures plainly. The first version scores 129, the AWD version scores 117, and the 20-inch version scores 112. Each time the label becomes more specific, the number drops.
Some may wonder whether 112 is a poor score. Not really. It still beats 11 of the 30 entries and sits comfortably in the middle. Many drivers would be perfectly happy with it.
This version is not bad, only different. Read the label carefully before signing, and do not assume the headline figure applies to your car.
20. Audi A6 e-tron
Sixteen points separate the standard Audi A6 e-tron, at 111 MPGe, from the ultra version at 127. That is a wide gap for cars with such similar names, and it shows why trim names deserve careful reading.
What does “ultra” stand for here? Going by the numbers, it seems to be Audi’s efficiency leader, although the data does not give the reason.
Take a customer who visits an Audi showroom after reading about the 127 MPGe score. She asks for an A6 e-tron, and the salesman brings out the standard version. Without checking the rating, she could drive home in a car that scores 16 points lower than she expected.
Nobody is playing a trick here. That is simply how the naming works. One model can have several versions, each with its own rating.
To get Audi’s best score, ask for that version by name, and do well to confirm the figure on the window sticker before paying.
21. Lucid Gravity Touring
The Lucid Gravity Touring posts 111 MPGe, tying the Audi A6 e-tron for 20th place.
Lucid’s entry is interesting because the Gravity is a larger vehicle than many of the compact EVs appearing elsewhere on this list. Yet its 111 MPGe rating places it firmly among the more efficient vehicles in the supplied 2027 lineup.
The Gravity also appears later in a GT configuration rated at 108 MPGe. The 3 MPGe difference gives the Touring version the higher efficiency result.
For shoppers interested in a premium electric SUV, these figures show that vehicle size does not automatically prevent a strong MPGe result.
The Touring’s 111 MPGe rating is 18 MPGe below the Subaru Uncharted at the top, but it remains 6 MPGe higher than the BMW i5 eDrive40 20-inch configuration.
22. Genesis GV60 RWD
The Genesis GV60 RWD earns 110 MPGe, placing it 22nd. Its rating is just 1 MPGe below the Audi A6 e-tron and Lucid Gravity Touring.
This tight grouping illustrates how closely matched several premium EVs are in the middle portion of the ranking. A difference of one or two MPGe points separates a number of models.
The GV60’s rear-wheel-drive configuration also gives shoppers a precise specification to consider. The drivetrain designation matters because other versions of a vehicle can have different energy-efficiency results.
At 110 MPGe, the Genesis remains ahead of the Mercedes-Benz CLA250+ Plus at 109 MPGe and the Lucid Gravity GT at 108 MPGe.
That puts the GV60 RWD in a strong position despite its 22nd-place ranking. The list is competitive enough that a three-digit MPGe figure can still place a vehicle well below the halfway point.
23. Volvo EX60 P10
The Volvo EX60 P10 delivers 110 MPGe, tying the Genesis GV60 RWD.
The EX60 P10 trails the P6 configuration, which records 113 MPGe. The 3 MPGe gap once again shows that different powertrain versions can influence efficiency within the same model family.
Even with the lower figure, 110 MPGe remains a strong EPA result. The P10 sits ahead of the Mercedes-Benz CLA250+ Plus, Lucid Gravity GT, BMW i5 eDrive40 20-inch, Hyundai Ioniq 5 AWD, and the remaining entries.
This placement makes the EX60 a model worth checking by configuration. Buyers who want the highest possible efficiency may prefer the version with the higher supplied rating.
The P10’s 110 MPGe number earns it a shared 22nd position and keeps Volvo represented among the more efficient vehicles in this 2027 compilation.
24. Mercedes-Benz CLA250+ Plus
The Mercedes-Benz CLA250+ Plus records 109 MPGe, placing it 24th. That figure is lower than the 126 MPGe rating attached to the other CLA250+ configuration listed near the top.
The difference is a strong reminder that trim and specification details can have a major effect on EPA efficiency figures. A buyer looking only at the CLA250+ name could easily miss the distinction between these two entries.
Still, 109 MPGe is an efficient result by the standards of this 30-vehicle group. The model remains ahead of the Lucid Gravity GT at 108 MPGe and the 105 MPGe configurations farther down.
For shoppers comparing versions, the exact EPA listing provides more useful information than the broad model name alone.
25. Lucid Gravity GT
The Lucid Gravity GT posts 108 MPGe, placing it 25th. Its figure is 3 MPGe below the Gravity Touring and 2 MPGe below the Genesis GV60 RWD.
The two Gravity versions therefore provide a simple illustration of how configuration affects efficiency. The Touring version reaches 111 MPGe, while the GT is rated at 108 MPGe in the supplied compilation.
Even so, the GT remains above 100 MPGe. That places it ahead of several configurations that follow, including the BMW i5 eDrive40 20-inch and Hyundai Ioniq 5 AWD.
For a luxury electric SUV, 108 MPGe remains a strong efficiency figure. The ranking simply reflects the fact that other 2027 configurations achieve even higher EPA results.
26. BMW i5 eDrive40 20-inch
Going for the bigger wheels on the BMW i5 eDrive40 costs you 10 MPGe. The 20-inch version is rated at 106, while the standard eDrive40 stands at 116. Since the names are otherwise identical, the wheels seem to explain the difference.
Ten points is no small matter. It is enough to move a car from the upper half of the ranking to somewhere near the bottom, all because of one detail on the label.
Anyone who loves large wheels should therefore weigh what the style will cost. Some drivers will gladly pay it, while others will feel the looks are not worth the extra energy.
Here is a simple way to think about it. Imagine driving the car for a full year. The smaller wheels would use less energy over the same distance. If you are comfortable with the extra cost, the larger wheels may be worth considering. If not, the smaller wheels are the more practical choice.
Whichever you choose, do well to check the rating first.
27. Hyundai Ioniq 5 AWD
The Ioniq 5 AWD from Hyundai scores 106 MPGe, the lowest of the three Ioniq 5 versions. It sits 9 points below the Standard Range model, a clear drop within one family.
What you get in return is better traction on snow or slippery roads, but this data shows it costs some efficiency. You gain grip and lose a little range.
Picture a light jacket beside a heavy coat. The coat is welcome in harsh weather, yet nobody wears it on a mild day. All-wheel drive works the same way.
Let your climate guide the choice, not only your budget. Drivers who rarely meet rough conditions may prefer the rear-wheel drive version, while those who face icy roads regularly may find the lower score worth it.
Numbers come from the data, while context comes from your own roads. Combine both to find the version that truly suits you.
28. Audi A6 e-tron quattro
The Audi A6 e-tron quattro records 105 MPGe, placing it among the lowest-rated vehicles in this ranking. Its figure is 22 MPGe below the Audi A6 e-tron ultra, which leads the Audi entries at 127 MPGe.
This difference highlights how much efficiency can vary within the same model family. The supplied data lists four A6 e-tron configurations, with ratings of 127, 117, 111, and 105 MPGe. Each version carries a distinct efficiency figure, making the exact configuration important for buyers comparing electric vehicles.
The quattro designation identifies Audi’s all-wheel-drive system, which provides power to both axles. While this setup can appeal to drivers who value traction and stability, the EPA figures show that this particular configuration delivers less efficiency than its higher-rated siblings.
Still, 105 MPGe remains a respectable result within this group of 30 vehicles. It matches the BMW iX3 All-Season and Summer configurations, demonstrating that several premium electric vehicles occupy the same efficiency range.
For shoppers considering the Audi A6 e-tron, comparing drivetrain options and checking the official EPA rating can help determine which version best balances efficiency, performance, and everyday driving needs.
29. BMW iX3 All-Season
The BMW iX3 All-Season posts 105 MPGe, tying the Audi A6 e-tron quattro.
The iX3 appears several times in the supplied data, and tire configuration makes a clear difference. The iX3 50 xDrive reaches 118 MPGe, while both the All-Season and Summer versions are listed at 105 MPGe.
That 13 MPGe gap shows why shoppers should examine the precise equipment attached to an EPA rating.
Even at 105 MPGe, however, the All-Season configuration remains among the 30 most efficient vehicles in the compilation. Its figure is 24 MPGe below the Subaru Uncharted at number one, but it still posts a three-digit result.
30. BMW iX3 Summer
The BMW iX3 Summer closes the ranking with 105 MPGe. It ties the BMW iX3 All-Season and Audi A6 e-tron quattro for the lowest figure among these 30 entries.
The iX3’s configuration spread is particularly interesting. Its 50 xDrive version reaches 118 MPGe, while the All-Season and Summer versions each record 105 MPGe.
That difference reinforces a practical point for vehicle shoppers. EPA efficiency figures apply to specific configurations, not simply to the model name.
Even as the final entry, the iX3 Summer remains highly efficient relative to the vehicles represented in this compilation. Its 105 MPGe rating gives it a place among the 30 most efficient 2027 vehicles supplied by MPG Buddy’s EPA data compilation.
