| Model Year | 2021 | 2024 | |
| Model | Audi A5 / S5 / RS5 | Audi A8 / S8 | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr Hatch | 4dr Sedan, ext. | |
| Difference | |||
| Wheelbase | 111.1 in | 123.1 in | -12 in |
| Length | 187.3 in | 209.5 in | -22.2 in |
| Width | 72.5 in | 76.6 in | -4.1 in |
| Height | 54.5 in | 58.3 in | -3.8 in |
| Curb Weight | 3759 lb. | 4762 lb. | -1003 lb. |
| Fuel Capacity | 15.3 gal. | 21.7 gal. | -6.4 gal. |
| Headroom, Row 1 | 37.7 in | 38.3 in | -0.6 in |
| Shoulder Room, Row 1 | 55.7 in | 59.1 in | -3.4 in |
| Legroom, Row 1 | 41.3 in | 41.5 in | -0.2 in |
| Headroom, Row 2 | 37.0 in | 38.5 in | -1.5 in |
| Shoulder Room, Row 2 | 54.5 in | 57.6 in | -3.1 in |
| Legroom, Row 2 | 35.1 in | 44.3 in | -9.2 in |
| Total Legroom | 76.4 in (over 2 rows) | 85.8 in (over 2 rows) | -9.4 in |
| Cargo Volume, Minimum | 21.8 ft3 | 12.5 ft3 | 9.3 ft3 |
| Cargo Volume, Maximum | 35.0 ft3 | 12.5 ft3 | 22.5 ft3 |
None of our members have yet commented on the seat room and comfort of the 2021 Audi A5 / S5 / RS5.
None of our members have yet commented on the seat room and comfort of the 2024 Audi A8 / S8.