Car Engine Displacement City MPG Acura RL 3.5 16 Buick LeCrosse 3.8 17 Cadillac DTS 4.6 15 Chevrolet Cobalt 2.2 24 Chevrolet Impala 3.5 18 Chevrolet Malibu 2.4 22 Chrysler Sebring 2.4 21 Dodge Magnum 2.7 18 Ford Taurus 3.5 18 Ford Focus 2.0 24 Ford Mustang 4.0 17 Lexus LS 460 4.6 16 Pontiac Grand Prix 3.8 18 Pontiac G5 2.2 24 Saturn Aura 2.4 22