| Model Year | 2017 | 2015 | |
| Model | Mercedes-Benz GLA | BMW X4 | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr SUV | 4dr SUV | |
| Difference | |||
| Wheelbase | 106.3 in | 110.6 in | -4.3 in |
| Length | 173.9 in | 184.3 in | -10.4 in |
| Width | 71.0 in | 74.1 in | -3.1 in |
| Height | 60.0 in | 63.9 in | -3.9 in |
| Curb Weight | 3296 lb. | 4130 lb. | -834 lb. |
| Fuel Capacity | 14.8 gal. | 17.7 gal. | -2.9 gal. |
| Headroom, Row 1 | 40.0 in | 40.0 in | 0 in |
| Shoulder Room, Row 1 | 54.8 in | 57.2 in | -2.4 in |
| Legroom, Row 1 | 41.9 in | 40.4 in | 1.5 in |
| Headroom, Row 2 | 38.4 in | 37.4 in | 1 in |
| Shoulder Room, Row 2 | 53.1 in | 56.0 in | -2.9 in |
| Legroom, Row 2 | 33.9 in | 34.8 in | -0.9 in |
| Total Legroom | 75.8 in (over 2 rows) | 75.2 in (over 2 rows) | 0.6 in |
| Cargo Volume, Minimum | 17.2 ft3 | 17.7 ft3 | -0.5 ft3 |
| Cargo Volume, Maximum | 43.6 ft3 | 49.4 ft3 | -5.8 ft3 |
None of our members have yet commented on the seat room and comfort of the 2017 Mercedes-Benz GLA.
None of our members have yet commented on the seat room and comfort of the 2015 BMW X4.