| Model Year | 2015 | 2010 | |
| Model | Audi A8 / S8 | Audi R8 | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr Sedan | 2dr Coupe | |
| Difference | |||
| Wheelbase | 117.8 in | 104.3 in | 13.5 in |
| Length | 202.2 in | 174.5 in | 27.7 in |
| Width | 76.7 in | 75.0 in | 1.7 in |
| Height | 57.5 in | 49.3 in | 8.2 in |
| Curb Weight | 4365 lb. | 3605 lb. | 760 lb. |
| Fuel Capacity | 21.7 gal. | 23.8 gal. | -2.1 gal. |
| Headroom, Row 1 | 37.2 in | 38.0 in | -0.8 in |
| Shoulder Room, Row 1 | 59.1 in | 54.4 in | 4.7 in |
| Legroom, Row 1 | 41.4 in | 41.1 in | 0.3 in |
| Headroom, Row 2 | 38.1 in | 0.0 in | 38.1 in |
| Shoulder Room, Row 2 | 57.8 in | 0.0 in | 57.8 in |
| Legroom, Row 2 | 38.7 in | 0.0 in | 38.7 in |
| Total Legroom | 80.1 in (over 2 rows) | 41.1 in (over 1 rows) | 39 in |
| Cargo Volume | 14.2 ft3 | 3.5 ft3 | 10.7 ft3 |
None of our members have yet commented on the seat room and comfort of the 2015 Audi A8 / S8.
None of our members have yet commented on the seat room and comfort of the 2010 Audi R8.