| Model Year | 2017 | 2016 | |
| Model | Mercedes-Benz GLS | BMW i8 | |
| Engine | turbocharged 5.5L V8 DOHC-4v 577 hp@5500 561 lb-ft@1750 |
turbocharged 1.3L I3 Plug-in Hybrid DOHC-4v 357 hp 420 lb-ft |
|
| Transmission | 7-speed shiftable automatic | 6-speed shiftable automatic | |
| Drivetrain | AWD | AWD | |
| Body | 4dr SUV | 2dr Coupe | |
| Difference | |||
| Wheelbase | 121.1 in | 110.2 in | 10.9 in |
| Length | 202.0 in | 184.9 in | 17.1 in |
| Width | 76.1 in | 76.5 in | -0.4 in |
| Height | 72.8 in | 50.8 in | 22 in |
| Curb Weight | 5754 lb. | 3455 lb. | 2299 lb. |
| Fuel Capacity | 26.4 gal. | 11.1 gal. | 15.3 gal. |
| Headroom, Row 1 | 41.2 in | 38.7 in | 2.5 in |
| Shoulder Room, Row 1 | 58.5 in | 61.1 in | -2.6 in |
| Legroom, Row 1 | 40.3 in | 0.0 in | 40.3 in |
| Headroom, Row 2 | 40.0 in | 32.4 in | 7.6 in |
| Shoulder Room, Row 2 | 58.3 in | 51.5 in | 6.8 in |
| Legroom, Row 2 | 38.5 in | 0.0 in | 38.5 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) | 0 in (over 1 rows) | 113.8 in |
| Cargo Volume, Minimum | 16.0 ft3 | 4.7 ft3 | 11.3 ft3 |
| Cargo Volume, Behind R2 | 49.4 ft3 | 4.7 | 44.7 ft3 |
| Cargo Volume, Maximum | 93.8 ft3 | 4.7 ft3 | 89.1 ft3 |
None of our members have yet commented on the seat room and comfort of the 2017 Mercedes-Benz GLS.
None of our members have yet commented on the seat room and comfort of the 2016 BMW i8.