| Model Year | 2017 | 2021 | |
| Model | Audi A8 / S8 | Ford Expedition | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr Sedan, ext. | 4dr SUV | |
| Difference | |||
| Wheelbase | 122.9 in | 122.5 in | 0.4 in |
| Length | 207.4 in | 210.0 in | -2.6 in |
| Width | 76.7 in | 79.9 in | -3.2 in |
| Height | 57.9 in | 76.6 in | -18.7 in |
| Curb Weight | 4464 lb. | 5368 lb. | -904 lb. |
| Fuel Capacity | 21.7 gal. | 23.3 gal. | -1.6 gal. |
| Headroom, Row 1 | 37.2 in | 42.0 in | -4.8 in |
| Shoulder Room, Row 1 | 59.1 in | 64.9 in | -5.8 in |
| Hip Room, Row 1 | 0.0 in | 62.2 in | -62.2 in |
| Legroom, Row 1 | 41.4 in | 41.0 in | 0.4 in |
| Headroom, Row 2 | 39.1 in | 40.0 in | -0.9 in |
| Shoulder Room, Row 2 | 57.8 in | 64.8 in | -7 in |
| Hip Room, Row 2 | 0.0 in | 62.6 in | -62.6 in |
| Legroom, Row 2 | 42.9 in | 41.5 in | 1.4 in |
| Headroom, Row 3 | 0.0 in | 37.3 in | -37.3 in |
| Shoulder Room, Row 3 | 0.0 in | 64.2 in | -64.2 in |
| Hip Room, Row 3 | 0.0 in | 51.4 in | -51.4 in |
| Legroom, Row 3 | 0.0 in | 36.1 in | -36.1 in |
| Total Legroom | 84.3 in (over 2 rows) | 118.6 in (over 3 rows) | -34.3 in |
| Cargo Volume, Minimum | 14.2 ft3 | 19.3 ft3 | -5.1 ft3 |
| Cargo Volume, Behind R2 | 14.2 | 57.5 ft3 | -43.3 |
| Cargo Volume, Maximum | 14.2 ft3 | 104.6 ft3 | -90.4 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 2021 Ford Expedition.