| Model Year | 2017 | 2023 | |
| Model | Mercedes-Benz B-Class | BMW 4-Series | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr Hatch | 2dr Coupe | |
| Difference | |||
| Wheelbase | 106.3 in | 112.2 in | -5.9 in |
| Length | 171.6 in | 187.9 in | -16.3 in |
| Width | 70.3 in | 72.9 in | -2.6 in |
| Height | 61.3 in | 54.6 in | 6.7 in |
| Curb Weight | 3924 lb. | 3578 lb. | 346 lb. |
| Fuel Capacity | 0.0 gal. | 15.6 gal. | -15.6 gal. |
| Headroom, Row 1 | 0.0 in | 38.0 in | -38 in |
| Shoulder Room, Row 1 | 0.0 in | 55.1 in | -55.1 in |
| Legroom, Row 1 | 0.0 in | 41.8 in | -41.8 in |
| Headroom, Row 2 | 0.0 in | 35.2 in | -35.2 in |
| Shoulder Room, Row 2 | 0.0 in | 51.0 in | -51 in |
| Legroom, Row 2 | 0.0 in | 34.5 in | -34.5 in |
| Total Legroom | 0 in (over 1 rows) | 76.3 in (over 2 rows) | -76.3 in |
| Cargo Volume, Minimum | 21.0 ft3 | 12.0 ft3 | 9 ft3 |
| Cargo Volume, Maximum | 51.4 ft3 | 12.0 ft3 | 39.4 ft3 |
None of our members have yet commented on the seat room and comfort of the 2017 Mercedes-Benz B-Class.
None of our members have yet commented on the seat room and comfort of the 2023 BMW 4-Series.