Top low fuel consumption cars engine rank and list Most economical cars engine rank and list, the lower the better (click on numbers to see car and engine list) 5.8l/100km 5.7l/100km 5.3l/100km 5.2l/100km 5.1l/100km 4.9l/100km 4.7l/100km 4.5l/100km 4.4l/100km 4.2l/100km 4.1l/100km 3.8l/100km 3.7l/100km 3.5l/100km 3.3l/100km Share this:FacebookTwitterLinkedInEmailLike Loading...