| Model Year | 2021 | 2023 | |
| Model | Mercedes-Benz A-Class | Audi A6 / S6 / RS6 | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr Sedan | 4dr Sedan | |
| Difference | |||
| Wheelbase | 107.4 in | 115.1 in | -7.7 in |
| Length | 179.1 in | 194.4 in | -15.3 in |
| Width | 70.7 in | 74.3 in | -3.6 in |
| Height | 56.9 in | 57.4 in | -0.5 in |
| Curb Weight | 3285 lb. | 4101 lb. | -816 lb. |
| Fuel Capacity | 13.5 gal. | 19.3 gal. | -5.8 gal. |
| Headroom, Row 1 | 40.3 in | 38.0 in | 2.3 in |
| Shoulder Room, Row 1 | 55.1 in | 57.8 in | -2.7 in |
| Legroom, Row 1 | 41.8 in | 41.3 in | 0.5 in |
| Headroom, Row 2 | 37.2 in | 38.1 in | -0.9 in |
| Shoulder Room, Row 2 | 54.0 in | 56.5 in | -2.5 in |
| Legroom, Row 2 | 33.9 in | 37.4 in | -3.5 in |
| Total Legroom | 75.7 in (over 2 rows) | 78.7 in (over 2 rows) | -3 in |
| Cargo Volume | 8.6 ft3 | 13.7 ft3 | -5.1 ft3 |
None of our members have yet commented on the seat room and comfort of the 2021 Mercedes-Benz A-Class.
None of our members have yet commented on the seat room and comfort of the 2023 Audi A6 / S6 / RS6.