| Model Year | 2009 | 2016 | |
| Model | Audi A8 / S8 | Mercedes-Benz B-Class | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr Sedan, ext. | 4dr Hatch | |
| Difference | |||
| Wheelbase | 121.0 in | 106.3 in | 14.7 in |
| Length | 204.4 in | 171.6 in | 32.8 in |
| Width | 74.6 in | 70.3 in | 4.3 in |
| Height | 57.3 in | 61.3 in | -4 in |
| Curb Weight | 4399 lb. | 3924 lb. | 475 lb. |
| Fuel Capacity | 23.8 gal. | 0.0 gal. | 23.8 gal. |
| Headroom, Row 1 | 37.4 in | 0.0 in | 37.4 in |
| Shoulder Room, Row 1 | 59.1 in | 0.0 in | 59.1 in |
| Legroom, Row 1 | 41.3 in | 0.0 in | 41.3 in |
| Headroom, Row 2 | 38.3 in | 0.0 in | 38.3 in |
| Shoulder Room, Row 2 | 57.5 in | 0.0 in | 57.5 in |
| Legroom, Row 2 | 42.3 in | 0.0 in | 42.3 in |
| Total Legroom | 83.6 in (over 2 rows) | 0 in (over 1 rows) | 83.6 in |
| Cargo Volume, Minimum | 14.6 ft3 | 21.0 ft3 | -6.4 ft3 |
| Cargo Volume, Maximum | 14.6 ft3 | 51.4 ft3 | -36.8 ft3 |
None of our members have yet commented on the seat room and comfort of the 2009 Audi A8 / S8.
None of our members have yet commented on the seat room and comfort of the 2016 Mercedes-Benz B-Class.