| Model Year | 2011 | 2024 | |
| Model | Mercedes-Benz M-Class | Audi A8 / S8 | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr SUV | 4dr Sedan, ext. | |
| Difference | |||
| Wheelbase | 114.7 in | 123.1 in | -8.4 in |
| Length | 188.5 in | 209.5 in | -21 in |
| Width | 75.2 in | 76.6 in | -1.4 in |
| Height | 70.1 in | 58.3 in | 11.8 in |
| Curb Weight | 4705 lb. | 4762 lb. | -57 lb. |
| Fuel Capacity | 25.1 gal. | 21.7 gal. | 3.4 gal. |
| Headroom, Row 1 | 39.9 in | 38.3 in | 1.6 in |
| Shoulder Room, Row 1 | 59.9 in | 59.1 in | 0.8 in |
| Hip Room, Row 1 | 55.9 in | 0.0 in | 55.9 in |
| Legroom, Row 1 | 42.2 in | 41.5 in | 0.7 in |
| Headroom, Row 2 | 39.8 in | 38.5 in | 1.3 in |
| Shoulder Room, Row 2 | 59.8 in | 57.6 in | 2.2 in |
| Hip Room, Row 2 | 56.2 in | 0.0 in | 56.2 in |
| Legroom, Row 2 | 40.0 in | 44.3 in | -4.3 in |
| Total Legroom | 82.2 in (over 2 rows) | 85.8 in (over 2 rows) | -3.6 in |
| Cargo Volume, Minimum | 29.4 ft3 | 12.5 ft3 | 16.9 ft3 |
| Cargo Volume, Maximum | 72.4 ft3 | 12.5 ft3 | 59.9 ft3 |
None of our members have yet commented on the seat room and comfort of the 2011 Mercedes-Benz M-Class.
None of our members have yet commented on the seat room and comfort of the 2024 Audi A8 / S8.