When it comes to full-size luxury SUVs, BMW and Mercedes-Benz offer a variety of choices, including the X7 and GLS models with various powertrains. Among them, the X7 M60i and GLS 580 stand out as twin-turbocharged eight-cylinder models, each offering impressive performance.
The X7 M60i features the S68 engine, a special powerplant developed by BMW’s M division, while the GLS 580 is equipped with the M176 mild-hybrid engine. Despite their similar power and torque outputs, the S68 engine in the X7 M60i is deemed more special due to its M division pedigree.
The S68 engine, designed with electrification in mind, delivers 523 horsepower and 553 pound-feet of torque, surpassing the GLS 580’s output of 510 horsepower and 538 pound-feet of torque.
Although both vehicles boast powerful engines and advanced transmission systems, the X7 M60i demonstrates superior performance in acceleration tests.
Despite the GLS 580’s higher price tag, both vehicles offer luxurious features, advanced technology, and spacious interiors, catering to discerning customers in the luxury SUV segment.
