| Model Year | 2021 | 2015 | |
| Model | Audi A8 / S8 | Infiniti Q70 | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr Sedan, ext. | 4dr Sedan, ext. | |
| Difference | |||
| Wheelbase | 123.2 in | 120.1 in | 3.1 in |
| Length | 208.7 in | 202.0 in | 6.7 in |
| Width | 76.6 in | 72.6 in | 4 in |
| Height | 58.6 in | 59.1 in | -0.5 in |
| Curb Weight | 4773 lb. | 3957 lb. | 816 lb. |
| Fuel Capacity | 21.7 gal. | 20.0 gal. | 1.7 gal. |
| Headroom, Row 1 | 38.3 in | 39.1 in | -0.8 in |
| Shoulder Room, Row 1 | 59.1 in | 58.4 in | 0.7 in |
| Hip Room, Row 1 | 0.0 in | 54.3 in | -54.3 in |
| Legroom, Row 1 | 41.5 in | 44.4 in | -2.9 in |
| Headroom, Row 2 | 38.5 in | 37.7 in | 0.8 in |
| Shoulder Room, Row 2 | 57.6 in | 56.7 in | 0.9 in |
| Hip Room, Row 2 | 0.0 in | 53.5 in | -53.5 in |
| Legroom, Row 2 | 44.3 in | 41.8 in | 2.5 in |
| Total Legroom | 85.8 in (over 2 rows) | 86.2 in (over 2 rows) | -0.4 in |
| Cargo Volume | 12.5 ft3 | 14.9 ft3 | -2.4 ft3 |
None of our members have yet commented on the seat room and comfort of the 2021 Audi A8 / S8.
None of our members have yet commented on the seat room and comfort of the 2015 Infiniti Q70.