| Model Year | 2021 | 2023 | |
| Model | Audi A4 / S4 | Audi R8 | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr Sedan | 2dr Coupe | |
| Difference | |||
| Wheelbase | 111.0 in | 104.3 in | 6.7 in |
| Length | 187.5 in | 174.4 in | 13.1 in |
| Width | 72.7 in | 76.4 in | -3.7 in |
| Height | 56.2 in | 48.7 in | 7.5 in |
| Curb Weight | 3682 lb. | 3571 lb. | 111 lb. |
| Fuel Capacity | 15.3 gal. | 21.9 gal. | -6.6 gal. |
| Headroom, Row 1 | 37.3 in | 38.5 in | -1.2 in |
| Shoulder Room, Row 1 | 55.9 in | 55.1 in | 0.8 in |
| Legroom, Row 1 | 41.3 in | 40.9 in | 0.4 in |
| Headroom, Row 2 | 37.4 in | 0.0 in | 37.4 in |
| Shoulder Room, Row 2 | 54.5 in | 0.0 in | 54.5 in |
| Legroom, Row 2 | 35.7 in | 0.0 in | 35.7 in |
| Total Legroom | 77 in (over 2 rows) | 40.9 in (over 1 rows) | 36.1 in |
| Cargo Volume, Minimum | 12.0 ft3 | 4.0 ft3 | 8 ft3 |
| Cargo Volume, Maximum | 12.0 ft3 | 8.0 ft3 | 4 ft3 |
None of our members have yet commented on the seat room and comfort of the 2021 Audi A4 / S4.
None of our members have yet commented on the seat room and comfort of the 2023 Audi R8.