Best Gas Mileage Luxury Sedan

Not all luxury sedans are gas hogs! These days, it's possible to save on gas and be green, while riding in style. The best gas mileage luxury sedans give up little to their gas guzzling brethern when it comes to comfort. Choose a certain German luxury sedan and you stand to save thousands upon thousands of dollars per year in the cost of fuel.

The 2007 Mercedes-Benz E320 Bluetec is the hands-down MPG winner in the Luxury Sedan class. Mated to an electronically controlled seven-speed automatic transmission, the E320's 24-valve 3.0 liter V-6 diesel engine, delivers a very respectable 23 city and 32 highway miles per gallon. With 208 horsepower (at 3,800 rpm) and net torque of 388 lb-ft (between 1,600 and 2,400 rpm) the MB E320 has plenty of ooomph off the line and on the highway.

Decade after decade, Mercedes-Benz's diesel-powered sedans have set the standard for fuel economy with luxury. The E320 Bluetec, along with its 4WD SUV diesel-powered brothers -- GL320 CDI, ML320 CDI SUV, and R320 CDI SUV -- give all every other automaker something to shoot for ... should those manufacturers ever get off their duffs and choose to compete in an American marketplace hungry for the ever-obvious benefits of domestically produced biodiesel.

Mercedes-Benz E320 Bluetec 6 cylinder 3 liter Automatic (L7) Diesel 23 city 32 highway

Lexus GS 450h 6 cylinder 3.5 liter Automatic (6) HEV Premium 22 city 25 highway

Lexus ES 350 6 cylinder 3.5 liter Automatic (6) Premium 19 city 27 highway

Lexus GS 350 6 cylinder 3.5 liter Automatic (6) Premium 19 city 26 highway

BMW 525i 6 cylinder 3 liter Automatic (6) Premium 18 city 28 highway

BMW 530i 6 cylinder 3 liter Automatic (6) Premium 18 city 28 highway

BMW 525i 6 cylinder 3 liter Manual (6) Premium 18 city 28 highway

BMW 530i 6 cylinder 3 liter Manual (6) Premium 18 city 28 highway

Audi A6 6 cylinder 3.1 liter Automatic (CVT) Premium 18 city 27 highway

Lexus GS 350 AWD 6 cylinder 3.5 liter Automatic (6) Premium 18 city 25 highway

BMW 525xi 6 cylinder 3 liter Manual (6) Premium 17 city 26 highway

BMW 530xi 6 cylinder 3 liter Manual (6) Premium 17 city 26 highway

Jaguar S-Type 3.0 Litre 6 cylinder 3 liter Automatic (6) Premium 17 city 26 highway

BMW 525xi 6 cylinder 3 liter Automatic (6) Premium 17 city 25 highway

BMW 530i 6 cylinder 3 liter Automatic (6) SMG TRANS Premium 17 city 25 highway

BMW 530xi 6 cylinder 3 liter Automatic (6) Premium 17 city 25 highway

Audi A6 Quattro 6 cylinder 3.1 liter Automatic (6) Premium 17 city 25 highway

Lexus LS 460 8 cylinder 4.6 liter Automatic (S8) Premium 17 city 25 highway

Mercedes-Benz E350 6 cylinder 3.5 liter Automatic (L7) Premium 17 city 24 highway

Jaguar Vdp Lwb 8 cylinder 4.2 liter Automatic (6) Premium 16 city 25 highway

Jaguar XJ8 8 cylinder 4.2 liter Automatic (6) Premium 16 city 25 highway

Jaguar XJ8L 8 cylinder 4.2 liter Automatic (6) Premium 16 city 25 highway

Jaguar S-Type 4.2 Litre 8 cylinder 4.2 liter Automatic (6) Premium 16 city 24 highway

Acura RL 6 cylinder 3.5 liter Automatic (S5) Premium 16 city 24 highway

Lexus LS 460 L 8 cylinder 4.6 liter Automatic (S8) Premium 16 city 24 highway

Mercedes-Benz E350 4matic 6 cylinder 3.5 liter Automatic (5) Premium 16 city 23 highway

Infiniti M35 6 cylinder 3.5 liter Automatic (S5) Premium 16 city 23 highway

Lexus GS 430 8 cylinder 4.3 liter Automatic (6) Premium 16 city 23 highway

Audi A6 Quattro 8 cylinder 4.2 liter Automatic (6) Premium 16 city 23 highway

Audi A8 8 cylinder 4.2 liter Automatic (6) Premium 16 city 23 highway

Audi A8 L 8 cylinder 4.2 liter Automatic (6) Premium 16 city 23 highway

Jaguar X-Type 6 cylinder 3 liter Automatic (5) Premium 16 city 22 highway

Jaguar X-Type Sport Brake 6 cylinder 3 liter Automatic (5) Premium 16 city 22 highway

Infiniti M35x 6 cylinder 3.5 liter Automatic (S5) Premium 16 city 22 highway

Infiniti M45 8 cylinder 4.5 liter Automatic (S5) Premium 16 city 21 highway

BMW 550i 8 cylinder 4.8 liter Automatic (6) Premium 15 city 23 highway

Cadillac DTS 8 cylinder 4.6 liter Automatic (4) Regular 15 city 23 highway

Lincoln Town Car 8 cylinder 4.6 liter Automatic (4) Regular 15 city 23 highway

Lincoln Town Car 8 cylinder 4.6 liter Automatic (4) RNG=380 Gasoline 15 city 23 highway

Lincoln Town Car 8 cylinder 4.6 liter Automatic (4) RNG=380 E85 11 city 16 highway

BMW 650ci 8 cylinder 4.8 liter Automatic (6) Premium 15 city 23 highway

BMW 750i 8 cylinder 4.8 liter Automatic (6) Premium 15 city 23 highway

BMW 750li 8 cylinder 4.8 liter Automatic (6) Premium 15 city 23 highway

BMW 550i 8 cylinder 4.8 liter Manual (6) Premium 15 city 22 highway

Cadillac DTS 8 cylinder 4.6 liter Automatic (4) Regular 15 city 22 highway

Jaguar Super V8 8 cylinder 4.2 liter Automatic (6) Premium 15 city 22 highway

Jaguar XJR 8 cylinder 4.2 liter Automatic (6) Premium 15 city 22 highway

BMW 650ci 8 cylinder 4.8 liter Manual (6) Premium 15 city 22 highway

Jaguar S-Type R 8 cylinder 4.2 liter Automatic (6) Premium 15 city 22 highway

Mercedes-Benz S550 8 cylinder 5.5 liter Automatic (L7) Premium 14 city 22 highway

Mercedes-Benz E550 8 cylinder 5.5 liter Automatic (L7) Premium 14 city 21 highway

Mercedes-Benz S550 4matic 8 cylinder 5.5 liter Automatic (L7) Premium 14 city 21 highway

Cadillac STS 8 cylinder 4.6 liter Automatic (6) Premium 14 city 21 highway

BMW Alpina B7 8 cylinder 4.4 liter Automatic (6) Premium 14 city 21 highway

BMW 550i 8 cylinder 4.8 liter Automatic (6) SMG TRANS Premium 14 city 20 highway

Mercedes-Benz CLS550 8 cylinder 5.5 liter Automatic (L7) Premium 14 city 20 highway

Mercedes-Benz E550 4matic 8 cylinder 5.5 liter Automatic (5) Premium 14 city 20 highway

BMW 650ci 8 cylinder 4.8 liter Automatic (6) SMG TRANS Premium 14 city 20 highway

Audi S6 10 cylinder 5.2 liter Automatic (6) Premium 14 city 19 highway

BMW 760li 12 cylinder 6 liter Automatic (6) Premium 13 city 20 highway

Cadillac Limousine 8 cylinder 4.6 liter Automatic (4) Regular 13 city 19 highway

Audi S8 10 cylinder 5.2 liter Automatic (6) Premium 13 city 19 highway

Audi A8 L 12 cylinder 6 liter Automatic (6) Premium 13 city 19 highway

Mercedes-Benz E63 AMG 8 cylinder 6.2 liter Automatic (S7) Premium 12 city 19 highway

Mercedes-Benz CLS63 AMG 8 cylinder 6.2 liter Automatic (S7) Premium 12 city 18 highway

Mercedes-Benz CL600 12 cylinder 5.5 liter Automatic (5) Premium 12 city 18 highway

Maserati Quattroporte/QP Sport GT 8 cylinder 4.2 liter Automatic (6) Premium 12 city 17
highway

Mercedes-Benz S65 AMG 12 cylinder 6 liter Automatic (S5) Premium 11 city 18 highway

Rolls-Royce Phantom 12 cylinder 6.7 liter Automatic (6) Premium 11 city 18 highway

Rolls-Royce Phantom EWB 12 cylinder 6.7 liter Automatic (6) Premium 11 city 18 highway

Mercedes-Benz S600 12 cylinder 5.5 liter Automatic (5) Premium 11 city 17 highway

BMW M5 10 cylinder 5 liter Manual (6) Premium 11 city 17 highway

BMW M5 10 cylinder 5 liter Automatic (S7) SMG TRANS Premium 11 city 17 highway

Maserati Quattroporte/QP Sport GT 8 cylinder 4.2 liter Automatic (6) Premium 11 city 16
highway

Bentley Continental GT 12 cylinder 6 liter Automatic (6) Premium 10 city 17 highway

Bentley Continental GTC 12 cylinder 6 liter Automatic (6) Premium 10 city 17 highway

Bentley Continental Flying Spur 12 cylinder 6 liter Automatic (6) Premium 10 city 17 highway

Maybach 57 12 cylinder 5.5 liter Automatic (5) Premium 10 city 16 highway

Maybach 57S 12 cylinder 6 liter Automatic (5) Premium 10 city 16 highway

Maybach 62 12 cylinder 5.5 liter Automatic (5) Premium 10 city 16 highway

Maybach 62S 12 cylinder 6 liter Automatic (5) Premium 10 city 16 highway

Ferrari 612 Scaglietti 12 cylinder 5.7 liter Manual (6) Premium 10 city 15 highway

Bentley Arnage 8 cylinder 6.7 liter Automatic (6) Premium 10 city 15 highway

Bentley Arnage LWB 8 cylinder 6.7 liter Automatic (6) Premium 10 city 14 highway

Ferrari 612 Scaglietti 12 cylinder 5.7 liter Automatic (6) Premium 9 city 16 highway