| Model Year | 2007 | 2010 | |
| Model | Audi A8 / S8 | Audi R8 | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr Sedan | 2dr Coupe | |
| Difference | |||
| Wheelbase | 115.9 in | 104.3 in | 11.6 in |
| Length | 199.3 in | 174.5 in | 24.8 in |
| Width | 74.6 in | 75.0 in | -0.4 in |
| Height | 56.9 in | 49.3 in | 7.6 in |
| Curb Weight | 4288 lb. | 3605 lb. | 683 lb. |
| Fuel Capacity | 23.8 gal. | 23.8 gal. | 0 gal. |
| Headroom, Row 1 | 37.3 in | 38.0 in | -0.7 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 | 38.0 in | 0.0 in | 38 in |
| Shoulder Room, Row 2 | 57.5 in | 0.0 in | 57.5 in |
| Legroom, Row 2 | 37.6 in | 0.0 in | 37.6 in |
| Total Legroom | 79 in (over 2 rows) | 41.1 in (over 1 rows) | 37.9 in |
| Cargo Volume | 14.6 ft3 | 3.5 ft3 | 11.1 ft3 |
None of our members have yet commented on the seat room and comfort of the 2007 Audi A8 / S8.
None of our members have yet commented on the seat room and comfort of the 2010 Audi R8.