| Model Year | 2013 | 2018 | |
| Model | Mercedes-Benz M-Class | Audi A8 / S8 | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr SUV | 4dr Sedan, ext. | |
| Difference | |||
| Wheelbase | 114.8 in | 122.9 in | -8.1 in |
| Length | 189.1 in | 207.4 in | -18.3 in |
| Width | 75.2 in | 76.7 in | -1.5 in |
| Height | 70.7 in | 57.9 in | 12.8 in |
| Curb Weight | 4751 lb. | 4464 lb. | 287 lb. |
| Fuel Capacity | 24.6 gal. | 21.7 gal. | 2.9 gal. |
| Headroom, Row 1 | 38.9 in | 37.2 in | 1.7 in |
| Shoulder Room, Row 1 | 58.5 in | 59.1 in | -0.6 in |
| Legroom, Row 1 | 40.3 in | 41.4 in | -1.1 in |
| Headroom, Row 2 | 38.5 in | 39.1 in | -0.6 in |
| Shoulder Room, Row 2 | 58.4 in | 57.8 in | 0.6 in |
| Legroom, Row 2 | 38.4 in | 42.9 in | -4.5 in |
| Total Legroom | 78.7 in (over 2 rows) | 84.3 in (over 2 rows) | -5.6 in |
| Cargo Volume, Minimum | 36.2 ft3 | 14.2 ft3 | 22 ft3 |
| Cargo Volume, Maximum | 71.0 ft3 | 14.2 ft3 | 56.8 ft3 |
| 2013 Mercedes-Benz M-Class Seat Room and Comfort: Pros | ||
| Year | Body/Powertrain | Comment |
| 2013 | 4dr SUV turbocharged 240hp 3.0L V6 Diesel 7-speed shiftable automatic AWD |
No more back or leg pain on long trips. see full Mercedes-Benz M-Class review |
None of our members have yet commented on the seat room and comfort of the 2018 Audi A8 / S8.