| Model Year | 2021 | 2009 | |
| Model | Mercedes-Benz GLA | BMW X5 | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr SUV | 4dr SUV | |
| Difference | |||
| Wheelbase | 107.4 in | 115.5 in | -8.1 in |
| Length | 173.6 in | 191.1 in | -17.5 in |
| Width | 72.2 in | 76.1 in | -3.9 in |
| Height | 63.5 in | 69.5 in | -6 in |
| Curb Weight | 3384 lb. | 4982 lb. | -1598 lb. |
| Fuel Capacity | 12.7 gal. | 23.0 gal. | -10.3 gal. |
| Headroom, Row 1 | 39.0 in | 39.3 in | -0.3 in |
| Shoulder Room, Row 1 | 55.9 in | 60.0 in | -4.1 in |
| Legroom, Row 1 | 41.0 in | 40.0 in | 1 in |
| Headroom, Row 2 | 38.1 in | 39.0 in | -0.9 in |
| Shoulder Room, Row 2 | 54.8 in | 58.0 in | -3.2 in |
| Legroom, Row 2 | 38.0 in | 36.6 in | 1.4 in |
| Total Legroom | 79 in (over 2 rows) | 76.6 in (over 2 rows) | 2.4 in |
| Cargo Volume, Minimum | 15.4 ft3 | 7.1 ft3 | 8.3 ft3 |
| Cargo Volume, Behind R2 | 15.4 | 21.9 ft3 | -6.5 |
| Cargo Volume, Maximum | 50.5 ft3 | 61.8 ft3 | -11.3 ft3 |
None of our members have yet commented on the seat room and comfort of the 2021 Mercedes-Benz GLA.
None of our members have yet commented on the seat room and comfort of the 2009 BMW X5.