| Model Year | 2017 | 2020 | |
| Model | Audi A8 / S8 | Mazda Mazda3 | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr Sedan | 4dr Sedan | |
| Difference | |||
| Wheelbase | 117.8 in | 107.3 in | 10.5 in |
| Length | 202.6 in | 183.5 in | 19.1 in |
| Width | 76.7 in | 70.7 in | 6 in |
| Height | 57.4 in | 56.9 in | 0.5 in |
| Curb Weight | 4685 lb. | 3071 lb. | 1614 lb. |
| Fuel Capacity | 21.7 gal. | 13.2 gal. | 8.5 gal. |
| Headroom, Row 1 | 37.2 in | 38.0 in | -0.8 in |
| Shoulder Room, Row 1 | 59.1 in | 55.7 in | 3.4 in |
| Hip Room, Row 1 | 0.0 in | 54.6 in | -54.6 in |
| Legroom, Row 1 | 41.4 in | 42.3 in | -0.9 in |
| Headroom, Row 2 | 38.1 in | 37.3 in | 0.8 in |
| Shoulder Room, Row 2 | 57.8 in | 53.5 in | 4.3 in |
| Hip Room, Row 2 | 0.0 in | 50.9 in | -50.9 in |
| Legroom, Row 2 | 38.7 in | 35.1 in | 3.6 in |
| Total Legroom | 80.1 in (over 2 rows) | 77.4 in (over 2 rows) | 2.7 in |
| Cargo Volume | 14.2 ft3 | 13.2 ft3 | 1 ft3 |
None of our members have yet commented on the seat room and comfort of the 2017 Audi A8 / S8.
None of our members have yet commented on the seat room and comfort of the 2020 Mazda Mazda3.