| Model Year | 2006 | 2008 | |
| Model | Audi A8 | Mercedes-Benz S-Class | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr Sedan, ext. | 4dr Sedan, ext. | |
| Difference | |||
| Wheelbase | 121.0 in | 124.6 in | -3.6 in |
| Length | 204.4 in | 205.0 in | -0.6 in |
| Width | 74.6 in | 73.7 in | 0.9 in |
| Height | 57.3 in | 58.0 in | -0.7 in |
| Curb Weight | 4399 lb. | 4465 lb. | -66 lb. |
| Fuel Capacity | 23.8 gal. | 23.8 gal. | 0 gal. |
| Headroom, Row 1 | 37.4 in | 37.8 in | -0.4 in |
| Shoulder Room, Row 1 | 59.1 in | 59.1 in | 0 in |
| Legroom, Row 1 | 41.3 in | 41.9 in | -0.6 in |
| Headroom, Row 2 | 38.3 in | 38.5 in | -0.2 in |
| Shoulder Room, Row 2 | 57.5 in | 58.7 in | -1.2 in |
| Legroom, Row 2 | 42.3 in | 42.3 in | 0 in |
| Total Legroom | 83.6 in (over 2 rows) | 84.2 in (over 2 rows) | -0.6 in |
| Cargo Volume | 14.6 ft3 | 16.3 ft3 | -1.7 ft3 |
| 2006 Audi A8 Seat Room and Comfort: Pros | ||
| Year | Body/Powertrain | Comment |
| 2005 | 4dr Sedan, ext. 330-horsepower 4.2L V8 6-speed shiftable automatic AWD |
TOTAL COMFORT. SEAT CAN BE ADJUSTED TO GIVE COMFORT FOR BACK AND LEGS. see full Audi A8 review |
| 2008 Mercedes-Benz S-Class Seat Room and Comfort: Pros | ||
| Year | Body/Powertrain | Comment |
| 2007 | 4dr Sedan, ext. 382-horsepower 5.5L V8 7-speed shiftable automatic RWD |
Leg room for tall passengers see full Mercedes-Benz S-Class review |
| 2007 | 4dr Sedan, ext. 382-horsepower 5.5L V8 7-speed shiftable automatic RWD |
You can adjust the "multicontour" front seats as follows: height, seat angle, back angle, seat cushion length, seat cushion side bolsters, seat back bolsters, lumbar (both vertically and how much pressure),as well as shoulder support, seat firmness,& more see full Mercedes-Benz S-Class review |
| 2007 | 4dr Sedan turbocharged 232hp 3.0L V6 Diesel 7-speed shiftable automatic RWD |
Huge, soft reclining chair see full Mercedes-Benz S-Class review |
| 2007 | 4dr Sedan, ext. 382-horsepower 5.5L V8 7-speed shiftable automatic RWD |
Really like the fact that you could recline in the back seats without disturbing the front occupants. see full Mercedes-Benz S-Class review |
| 2007 | 4dr Sedan, ext. 382-horsepower 5.5L V8 7-speed shiftable automatic RWD |
My wife refers to it as a sofa on wheels, my daughter sprawls out in the cavernous back seat. I just love the way it drives. see full Mercedes-Benz S-Class review |
| 2007 | 0 | All our family are over 6 foot and there is plenty of room all round. see full Mercedes-Benz S-Class review |