| Model Year | 2015 | 2017 | |
| Model | Mercedes-Benz C-Class | Audi R8 | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 2dr Coupe | 2dr Coupe | |
| Difference | |||
| Wheelbase | 108.7 in | 104.3 in | 4.4 in |
| Length | 180.7 in | 174.3 in | 6.4 in |
| Width | 69.7 in | 76.4 in | -6.7 in |
| Height | 54.8 in | 48.8 in | 6 in |
| Curb Weight | 3538 lb. | 3737 lb. | -199 lb. |
| Fuel Capacity | 15.6 gal. | 23.9 gal. | -8.3 gal. |
| Headroom, Row 1 | 37.0 in | 38.5 in | -1.5 in |
| Shoulder Room, Row 1 | 54.0 in | 55.1 in | -1.1 in |
| Legroom, Row 1 | 42.0 in | 40.9 in | 1.1 in |
| Headroom, Row 2 | 35.5 in | 0.0 in | 35.5 in |
| Shoulder Room, Row 2 | 50.3 in | 0.0 in | 50.3 in |
| Legroom, Row 2 | 33.0 in | 0.0 in | 33 in |
| Total Legroom | 75 in (over 2 rows) | 40.9 in (over 1 rows) | 34.1 in |
| Cargo Volume, Minimum | 11.7 ft3 | 4.0 ft3 | 7.7 ft3 |
| Cargo Volume, Maximum | 11.7 ft3 | 8.0 ft3 | 3.7 ft3 |
None of our members have yet commented on the seat room and comfort of the 2015 Mercedes-Benz C-Class.
None of our members have yet commented on the seat room and comfort of the 2017 Audi R8.