| Model Year | 2015 | 2011 | |
| Model | Mercedes-Benz GL | Audi A8 | |
| Engine | turbocharged 5.5L V8 DOHC-4v 550 hp@5750 560 lb-ft@2000 |
4.2L V8 DOHC-4v 372 hp@6800 328 lb-ft@3500 |
|
| Transmission | 7-speed shiftable automatic | 8-speed shiftable automatic | |
| Drivetrain | AWD | AWD | |
| Body | 4dr SUV | 4dr Sedan, ext. | |
| Difference | |||
| Wheelbase | 121.0 in | 122.9 in | -1.9 in |
| Length | 201.6 in | 207.4 in | -5.8 in |
| Width | 76.4 in | 76.7 in | -0.3 in |
| Height | 72.8 in | 57.9 in | 14.9 in |
| Curb Weight | 5687 lb. | 4453 lb. | 1234 lb. |
| Fuel Capacity | 26.4 gal. | 23.8 gal. | 2.6 gal. |
| Headroom, Row 1 | 41.2 in | 37.2 in | 4 in |
| Shoulder Room, Row 1 | 58.5 in | 59.1 in | -0.6 in |
| Legroom, Row 1 | 40.3 in | 41.4 in | -1.1 in |
| Headroom, Row 2 | 40.0 in | 39.1 in | 0.9 in |
| Shoulder Room, Row 2 | 58.3 in | 57.8 in | 0.5 in |
| Legroom, Row 2 | 38.5 in | 42.9 in | -4.4 in |
| Headroom, Row 3 | 38.9 in | 0.0 in | 38.9 in |
| Shoulder Room, Row 3 | 50.5 in | 0.0 in | 50.5 in |
| Legroom, Row 3 | 35.0 in | 0.0 in | 35 in |
| Total Legroom | 113.8 in (over 3 rows) | 84.3 in (over 2 rows) | 29.5 in |
| Cargo Volume, Minimum | 16.0 ft3 | 13.2 ft3 | 2.8 ft3 |
| Cargo Volume, Behind R2 | 49.4 ft3 | 13.2 | 36.2 ft3 |
| Cargo Volume, Maximum | 93.8 ft3 | 13.2 ft3 | 80.6 ft3 |
None of our members have yet commented on the seat room and comfort of the 2015 Mercedes-Benz GL.
None of our members have yet commented on the seat room and comfort of the 2011 Audi A8.