| Model Year | 2016 | 2018 | |
| Model | Audi A8 / S8 | Lexus GS | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr Sedan | 4dr Sedan | |
| Difference | |||
| Wheelbase | 117.8 in | 112.2 in | 5.6 in |
| Length | 202.6 in | 192.1 in | 10.5 in |
| Width | 76.7 in | 72.4 in | 4.3 in |
| Height | 57.4 in | 57.3 in | 0.1 in |
| Curb Weight | 4685 lb. | 3805 lb. | 880 lb. |
| Fuel Capacity | 21.7 gal. | 17.4 gal. | 4.3 gal. |
| Headroom, Row 1 | 37.2 in | 38.0 in | -0.8 in |
| Shoulder Room, Row 1 | 59.1 in | 57.3 in | 1.8 in |
| Hip Room, Row 1 | 0.0 in | 54.5 in | -54.5 in |
| Legroom, Row 1 | 41.4 in | 42.3 in | -0.9 in |
| Headroom, Row 2 | 38.1 in | 37.8 in | 0.3 in |
| Shoulder Room, Row 2 | 57.8 in | 55.7 in | 2.1 in |
| Hip Room, Row 2 | 0.0 in | 54.1 in | -54.1 in |
| Legroom, Row 2 | 38.7 in | 36.8 in | 1.9 in |
| Total Legroom | 80.1 in (over 2 rows) | 79.1 in (over 2 rows) | 1 in |
| Cargo Volume | 14.2 ft3 | 16.2 ft3 | -2 ft3 |
None of our members have yet commented on the seat room and comfort of the 2016 Audi A8 / S8.
None of our members have yet commented on the seat room and comfort of the 2018 Lexus GS.