Audi A8 / S8 vs. Mercedes-Benz M-Class Fuel Economy (g/100m)

Chart is based on 28 fuel economy reports for the Audi A8 / S8 and 47 fuel economy reports for the Mercedes-Benz M-Class.

Audi A8 / S8 g/100m

Year	Body/Powertrain	flat, hilly, or mountainousLand	driving style: very light to "lead foot"Foot	A/C use: none to heavyA/C	constant stop and goTraf %	many stops per mileCity %	stop every mile or twoSub %	fairly steady speedHwy %	Hwy Spd	g/100m
2014	4dr Sedan, ext. turbocharged 420hp 4.0L V8 8-speed shiftable automatic AWD	flat	med	light	17	0	61	22	75	5.7
2012	4dr Sedan, ext. 372-horsepower 4.2L V8 8-speed shiftable automatic AWD	flat	med	hvy	0	50	0	50	65	5.6
2011	4dr Sedan 372-horsepower 4.2L V8 8-speed shiftable automatic AWD	flat	med	hvy	12	14	39	36	68	4.9
2009	4dr Sedan 350-horsepower 4.2L V8 6-speed shiftable automatic AWD	flat	light	none	0	0	0	100	75	5.0
2008	4dr Sedan, ext. 350-horsepower 4.2L V8 6-speed shiftable automatic AWD	flat	med	none	5	30	30	35	70	5.2
2008	4dr Sedan 350-horsepower 4.2L V8 6-speed shiftable automatic AWD	hills	lead	hvy	5	40	10	45	70	6.7
2007	4dr Sedan, ext. 350-horsepower 4.2L V8 6-speed shiftable automatic AWD	flat	med	hvy	5	5	10	80	75	3.7
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2007	4dr Sedan 350-horsepower 4.2L V8 6-speed shiftable automatic AWD	flat	med	none	7	34	30	29	88	18.5
2005	4dr Sedan, ext. 330-horsepower 4.2L V8 6-speed shiftable automatic AWD	flat	lead	hvy	23	15	25	38	60	5.6
2005	4dr Sedan 330-horsepower 4.2L V8 6-speed shiftable automatic AWD	flat	med	light	8	31	10	52	68	5.5
2004	4dr Sedan, ext. 330-horsepower 4.2L V8 6-speed shiftable automatic AWD	flat	med	light	8	11	15	66	74	9.8
2001	4dr Sedan 360-horsepower 4.2L V8 5-speed shiftable automatic AWD	flat	med	light	38	38	13	13	60	6.1
2000	4dr Sedan 310-horsepower 4.2L V8 5-speed shiftable automatic AWD	flat	light	light	12	8	14	67	60	5.2

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Mercedes-Benz M-Class g/100m

Year	Body/Powertrain	flat, hilly, or mountainousLand	driving style: very light to "lead foot"Foot	A/C use: none to heavyA/C	constant stop and goTraf %	many stops per mileCity %	stop every mile or twoSub %	fairly steady speedHwy %	Hwy Spd	g/100m
2013	4dr SUV turbocharged 240hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	flat	light	hvy	7	21	16	56	65	3.4
2012	4dr SUV turbocharged 240hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	hills	light	none	0	5	15	80	64	3.5
2011	4dr SUV turbocharged 210hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	flat	light	light	10	10	60	20	60	4.2
2010	4dr SUV turbocharged 228hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	hills	med	light	5	10	50	35	100	25.4
2010	4dr SUV turbocharged 210hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	flat	med	none	1	5	25	69	70	3.8
2010	4dr SUV 382-horsepower 5.5L V8 7-speed shiftable automatic AWD	flat	med	hvy	17	15	15	54	70	5.1
2009	4dr SUV turbocharged 210hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	flat	light	light	4	7	46	44	73	4.0
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2008	4dr SUV turbocharged 221hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	flat	med	none	25	30	30	15	100	26.1
2008	4dr SUV turbocharged 215hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	flat	light	light	2	18	17	63	70	6.6
2007	4dr SUV turbocharged 215hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	flat	v.lt	none	10	25	20	45	100	25.6
2007	4dr SUV 268-horsepower 3.5L V6 7-speed shiftable automatic AWD	flat	light	light	6	9	18	67	69	4.9
2006	4dr SUV 302-horsepower 5.0L V8 7-speed shiftable automatic AWD	flat	lead	hvy	25	25	25	25	75	5.7
2006	4dr SUV 268-horsepower 3.5L V6 7-speed shiftable automatic AWD	hills	light	light	0	0	46	54	65	5.1
2005	4dr SUV 288-horsepower 5.0L V8 5-speed shiftable automatic AWD w/low range	flat	med	hvy	0	47	47	5	80	5.4
2005	4dr SUV 232-horsepower 3.7L V6 5-speed shiftable automatic AWD w/low range	flat	light	none	5	20	25	50	70	6.6
2004	4dr SUV 232-horsepower 3.7L V6 5-speed shiftable automatic AWD w/low range	flat	light	none	0	0	60	40	67	5.5
2003	4dr SUV 288-horsepower 5.0L V8 5-speed shiftable automatic AWD w/low range	flat	med	hvy	5	5	25	65	80	5.7
2003	4dr SUV 215-horsepower 3.2L V6 5-speed shiftable automatic AWD w/low range	mtns	light	light	0	0	20	80	65	6.3
2002	4dr SUV 342-horsepower 5.4L V8 5-speed shiftable automatic AWD w/low range	flat	med	none	1	48	8	44	90	19.5
2002	4dr SUV 288-horsepower 5.0L V8 5-speed shiftable automatic AWD w/low range	flat	med	light	8	50	20	23	88	20.7
2002	4dr SUV 215-horsepower 3.2L V6 5-speed shiftable automatic AWD w/low range	flat	med	hvy	15	25	35	25	70	6.3
2000	4dr SUV 268-horsepower 4.3L V8 5-speed shiftable automatic AWD w/low range	flat	light	none	0	0	20	80	100	20.1
2000	4dr SUV 215-horsepower 3.2L V6 5-speed shiftable automatic AWD w/low range	flat	med	none	0	0	10	90	65	4.7

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This page shows only averages. See all the Mercedes-Benz M-Class fuel economy data.

See TrueDelta's information for all Sedans

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TrueDelta Reviews the Real Gas Mileage of the Audi A8 / S8

Audi A8 / S8 Real Gas Mileage: Pros
Year	Comment
2013	Fuel economy might seem an odd, "why to buy" for such a large, powerful car. But this large powerful car manages EPA ratings of 18 mpg city, 28 mpg highway, each one mpg better than the superceded V8. In suburban driving the trip computer typically reported averages in the low 20s, but as high as 25.5. We're a long way from large luxury sedans that had trouble cracking 18. The BMW is rated a bit higher, 19/28, but this is close enough to call it a draw. If you want even better fuel economy, Audi how also offers a 240-horsepower diesel with EPA ratings of 24/36. But the TDI is only available with the long wheelbase and will also cost you another $3,700. BMW offers no comparable car on this side of the Atlantic. see full Audi A8 / S8 review

What Our Members Are Saying about the Real Gas Mileage of the Audi A8 / S8

Audi A8 / S8 Real Gas Mileage: Pros
Year	Body/Powertrain	Comment
2004	4dr Sedan, ext. 330-horsepower 4.2L V8 6-speed shiftable automatic AWD	The Audi A8L is an interesting car if bought used. As it is a premium model, it is often bought on lease or by rich people. It is also all aluminium - when sold they are usually in great condition. The fuel economy is good for its size - about 12 miles a gallon city and 22 highway. For an 8 cylinder, all wheel drive performance car this is not bad. However high gas prices make it nota very economic choice for the gas version. With the introduction of the diesel version means used vehicles will come onto th eused market in about three years (2106). Fuel consumption will be better. see full Audi A8 / S8 review

What Our Members Are Saying about the Real Gas Mileage of the Mercedes-Benz M-Class

Mercedes-Benz M-Class Real Gas Mileage: Pros
Year	Body/Powertrain	Comment
2013	4dr SUV turbocharged 240hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	Upper 20's on highway and mid-20's in suburbia from a vehicle that weighs 5K lbs. see full Mercedes-Benz M-Class review
2009	4dr SUV turbocharged 210hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	Other luxury cars/SUVs require premium gas. Diesel could be same or even cheaper than regular gas and with immense torque and a somewhat light foot I get almost 25Mpg see full Mercedes-Benz M-Class review
2007	4dr SUV turbocharged 215hp 3.0L V6 Diesel 7-speed shiftable automatic AWD	5000 lbs vehicle. Gets 32 mpg on highway up to 75 mph, faster than that mpg drops. 23 to 24 mpg around town see full Mercedes-Benz M-Class review

Mercedes-Benz M-Class Real Gas Mileage: Cons
Year	Body/Powertrain	Comment
2007	4dr SUV 302-horsepower 5.0L V8 7-speed shiftable automatic AWD	Have a V8, so I should have expected, but mpg is averaging about 16 around town. With the current gas prices, I dread going to the pump. $90 to fill up the huge tank. see full Mercedes-Benz M-Class review