| Model Year | 2021 | 2023 | |
| Model | BMW 5-Series | Mercedes-Benz GLB | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr Sedan | 4dr SUV | |
| Difference | |||
| Wheelbase | 117.1 in | 111.4 in | 5.7 in |
| Length | 195.8 in | 182.4 in | 13.4 in |
| Width | 73.5 in | 72.2 in | 1.3 in |
| Height | 58.2 in | 65.3 in | -7.1 in |
| Curb Weight | 3765 lb. | 3638 lb. | 127 lb. |
| Fuel Capacity | 18.0 gal. | 15.9 gal. | 2.1 gal. |
| Headroom, Row 1 | 38.8 in | 40.7 in | -1.9 in |
| Shoulder Room, Row 1 | 58.7 in | 55.9 in | 2.8 in |
| Legroom, Row 1 | 41.4 in | 41.1 in | 0.3 in |
| Headroom, Row 2 | 37.5 in | 39.3 in | -1.8 in |
| Shoulder Room, Row 2 | 55.9 in | 54.9 in | 1 in |
| Legroom, Row 2 | 36.5 in | 38.1 in | -1.6 in |
| Headroom, Row 3 | 0.0 in | 34.8 in | -34.8 in |
| Shoulder Room, Row 3 | 0.0 in | 43.8 in | -43.8 in |
| Legroom, Row 3 | 0.0 in | 29.1 in | -29.1 in |
| Total Legroom | 77.9 in (over 2 rows) | 108.3 in (over 3 rows) | -30.4 in |
| Cargo Volume, Minimum | 14.0 ft3 | 22.0 ft3 | -8 ft3 |
| Cargo Volume, Maximum | 14.0 ft3 | 62.0 ft3 | -48 ft3 |
None of our members have yet commented on the seat room and comfort of the 2021 BMW 5-Series.
None of our members have yet commented on the seat room and comfort of the 2023 Mercedes-Benz GLB.