| Model Year | 2018 | 2011 | |
| Model | Mercedes-Benz S-Class | Audi A8 | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr Sedan, ext. | 4dr Sedan, ext. | |
| Difference | |||
| Wheelbase | 124.6 in | 122.9 in | 1.7 in |
| Length | 206.5 in | 207.4 in | -0.9 in |
| Width | 74.8 in | 76.7 in | -1.9 in |
| Height | 58.7 in | 57.9 in | 0.8 in |
| Curb Weight | 4731 lb. | 4453 lb. | 278 lb. |
| Fuel Capacity | 21.1 gal. | 23.8 gal. | -2.7 gal. |
| Headroom, Row 1 | 39.7 in | 37.2 in | 2.5 in |
| Shoulder Room, Row 1 | 59.7 in | 59.1 in | 0.6 in |
| Legroom, Row 1 | 41.4 in | 41.4 in | 0 in |
| Headroom, Row 2 | 37.4 in | 39.1 in | -1.7 in |
| Shoulder Room, Row 2 | 59.1 in | 57.8 in | 1.3 in |
| Legroom, Row 2 | 43.1 in | 42.9 in | 0.2 in |
| Total Legroom | 84.5 in (over 2 rows) | 84.3 in (over 2 rows) | 0.2 in |
| Cargo Volume | 16.3 ft3 | 13.2 ft3 | 3.1 ft3 |
None of our members have yet commented on the seat room and comfort of the 2018 Mercedes-Benz S-Class.
None of our members have yet commented on the seat room and comfort of the 2011 Audi A8.