| Model Year | 2020 | 2023 | |
| Model | Audi A4 / S4 | Mercedes-Benz SL | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr Sedan | 2dr Convertible | |
| Difference | |||
| Wheelbase | 111.0 in | 106.3 in | 4.7 in |
| Length | 187.5 in | 185.2 in | 2.3 in |
| Width | 72.7 in | 75.4 in | -2.7 in |
| Height | 56.2 in | 53.5 in | 2.7 in |
| Curb Weight | 3417 lb. | 3990 lb. | -573 lb. |
| Fuel Capacity | 15.3 gal. | 18.5 gal. | -3.2 gal. |
| Headroom, Row 1 | 37.3 in | 37.7 in | -0.4 in |
| Shoulder Room, Row 1 | 55.9 in | 56.3 in | -0.4 in |
| Legroom, Row 1 | 41.3 in | 41.5 in | -0.2 in |
| Headroom, Row 2 | 37.4 in | 32.7 in | 4.7 in |
| Shoulder Room, Row 2 | 54.5 in | 44.1 in | 10.4 in |
| Legroom, Row 2 | 35.7 in | 0.0 in | 35.7 in |
| Total Legroom | 77 in (over 2 rows) | 41.5 in (over 1 rows) | 35.5 in |
| Cargo Volume | 12.0 ft3 | 7.5 ft3 | 4.5 ft3 |
None of our members have yet commented on the seat room and comfort of the 2020 Audi A4 / S4.
None of our members have yet commented on the seat room and comfort of the 2023 Mercedes-Benz SL.