| Model Year | 2018 | 2017 | |
| Model | Audi A8 / S8 | Mercedes-Benz E-Class | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr Sedan | 4dr Sedan | |
| Difference | |||
| Wheelbase | 117.8 in | 115.7 in | 2.1 in |
| Length | 202.6 in | 193.8 in | 8.8 in |
| Width | 76.7 in | 73.7 in | 3 in |
| Height | 57.4 in | 57.8 in | -0.4 in |
| Curb Weight | 4685 lb. | 3792 lb. | 893 lb. |
| Fuel Capacity | 21.7 gal. | 17.4 gal. | 4.3 gal. |
| Headroom, Row 1 | 37.2 in | 37.4 in | -0.2 in |
| Shoulder Room, Row 1 | 59.1 in | 57.8 in | 1.3 in |
| Legroom, Row 1 | 41.4 in | 41.7 in | -0.3 in |
| Headroom, Row 2 | 38.1 in | 38.2 in | -0.1 in |
| Shoulder Room, Row 2 | 57.8 in | 57.1 in | 0.7 in |
| Legroom, Row 2 | 38.7 in | 36.2 in | 2.5 in |
| Total Legroom | 80.1 in (over 2 rows) | 77.9 in (over 2 rows) | 2.2 in |
| Cargo Volume | 14.2 ft3 | 13.1 ft3 | 1.1 ft3 |
None of our members have yet commented on the seat room and comfort of the 2018 Audi A8 / S8.
None of our members have yet commented on the seat room and comfort of the 2017 Mercedes-Benz E-Class.