| Model Year | 2018 | 2020 | |
| Model | Audi A8 / S8 | Mercedes-Benz A-Class | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr Sedan | 4dr Sedan | |
| Difference | |||
| Wheelbase | 117.8 in | 107.4 in | 10.4 in |
| Length | 202.6 in | 179.1 in | 23.5 in |
| Width | 76.7 in | 70.7 in | 6 in |
| Height | 57.4 in | 56.9 in | 0.5 in |
| Curb Weight | 4685 lb. | 3285 lb. | 1400 lb. |
| Fuel Capacity | 21.7 gal. | 13.5 gal. | 8.2 gal. |
| Headroom, Row 1 | 37.2 in | 40.3 in | -3.1 in |
| Shoulder Room, Row 1 | 59.1 in | 55.1 in | 4 in |
| Legroom, Row 1 | 41.4 in | 41.8 in | -0.4 in |
| Headroom, Row 2 | 38.1 in | 37.2 in | 0.9 in |
| Shoulder Room, Row 2 | 57.8 in | 54.0 in | 3.8 in |
| Legroom, Row 2 | 38.7 in | 33.9 in | 4.8 in |
| Total Legroom | 80.1 in (over 2 rows) | 75.7 in (over 2 rows) | 4.4 in |
| Cargo Volume | 14.2 ft3 | 8.6 ft3 | 5.6 ft3 |
None of our members have yet commented on the seat room and comfort of the 2018 Audi A8 / S8.
None of our members have yet commented on the seat room and comfort of the 2020 Mercedes-Benz A-Class.