The Featherweight Powerhouse: The 1960 Buick Aluminum 215 V8 1960 Rare Blue Buick (Via Buick) The lightest V8 engine ever used in a production car was the 1960 Buick Aluminum 215 V8, weighing just 324 lbs. Here’s a simple breakdown of its story and significance. Why Buick Made the Lightest…