| Model Year | 2020 | 2010 | |
| Model | Audi A3 / S3 / RS3 | Audi A8 | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr Sedan | 4dr Sedan | |
| Difference | |||
| Wheelbase | 103.8 in | 115.9 in | -12.1 in |
| Length | 175.4 in | 199.3 in | -23.9 in |
| Width | 70.7 in | 74.6 in | -3.9 in |
| Height | 55.7 in | 56.9 in | -1.2 in |
| Curb Weight | 3197 lb. | 4288 lb. | -1091 lb. |
| Fuel Capacity | 13.2 gal. | 23.8 gal. | -10.6 gal. |
| Headroom, Row 1 | 36.5 in | 37.3 in | -0.8 in |
| Shoulder Room, Row 1 | 54.8 in | 59.1 in | -4.3 in |
| Legroom, Row 1 | 41.2 in | 41.4 in | -0.2 in |
| Headroom, Row 2 | 36.1 in | 38.0 in | -1.9 in |
| Shoulder Room, Row 2 | 53.0 in | 57.5 in | -4.5 in |
| Legroom, Row 2 | 35.1 in | 37.6 in | -2.5 in |
| Total Legroom | 76.3 in (over 2 rows) | 79 in (over 2 rows) | -2.7 in |
| Cargo Volume | 12.3 ft3 | 14.6 ft3 | -2.3 ft3 |
None of our members have yet commented on the seat room and comfort of the 2020 Audi A3 / S3 / RS3.
None of our members have yet commented on the seat room and comfort of the 2010 Audi A8.