| Model Year | 2012 | 2024 | |
| Model | Mercedes-Benz R-Class | Audi A8 / S8 | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr SUV | 4dr Sedan, ext. | |
| Difference | |||
| Wheelbase | 126.6 in | 123.1 in | 3.5 in |
| Length | 203.1 in | 209.5 in | -6.4 in |
| Width | 77.1 in | 76.6 in | 0.5 in |
| Height | 65.4 in | 58.3 in | 7.1 in |
| Curb Weight | 4960 lb. | 4762 lb. | 198 lb. |
| Fuel Capacity | 21.1 gal. | 21.7 gal. | -0.6 gal. |
| Headroom, Row 1 | 39.8 in | 38.3 in | 1.5 in |
| Shoulder Room, Row 1 | 60.3 in | 59.1 in | 1.2 in |
| Legroom, Row 1 | 39.8 in | 41.5 in | -1.7 in |
| Headroom, Row 2 | 40.4 in | 38.5 in | 1.9 in |
| Shoulder Room, Row 2 | 59.6 in | 57.6 in | 2 in |
| Legroom, Row 2 | 36.2 in | 44.3 in | -8.1 in |
| Headroom, Row 3 | 37.2 in | 0.0 in | 37.2 in |
| Shoulder Room, Row 3 | 52.8 in | 0.0 in | 52.8 in |
| Legroom, Row 3 | 32.4 in | 0.0 in | 32.4 in |
| Total Legroom | 108.4 in (over 3 rows) | 85.8 in (over 2 rows) | 22.6 in |
| Cargo Volume, Minimum | 15.2 ft3 | 12.5 ft3 | 2.7 ft3 |
| Cargo Volume, Behind R2 | 42.2 ft3 | 12.5 | 29.7 ft3 |
| Cargo Volume, Maximum | 85.0 ft3 | 12.5 ft3 | 72.5 ft3 |
None of our members have yet commented on the seat room and comfort of the 2012 Mercedes-Benz R-Class.
None of our members have yet commented on the seat room and comfort of the 2024 Audi A8 / S8.