| Model Year | 2006 | 2023 | |
| Model | BMW 6-Series | Mercedes-Benz GLB | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 2dr Coupe | 4dr SUV | |
| Difference | |||
| Wheelbase | 109.4 in | 111.4 in | -2 in |
| Length | 190.2 in | 182.4 in | 7.8 in |
| Width | 73.0 in | 72.2 in | 0.8 in |
| Height | 54.1 in | 65.3 in | -11.2 in |
| Curb Weight | 3814 lb. | 3638 lb. | 176 lb. |
| Fuel Capacity | 18.5 gal. | 15.9 gal. | 2.6 gal. |
| Headroom, Row 1 | 37.6 in | 40.7 in | -3.1 in |
| Shoulder Room, Row 1 | 56.4 in | 55.9 in | 0.5 in |
| Legroom, Row 1 | 42.0 in | 41.1 in | 0.9 in |
| Headroom, Row 2 | 35.6 in | 39.3 in | -3.7 in |
| Shoulder Room, Row 2 | 49.4 in | 54.9 in | -5.5 in |
| Legroom, Row 2 | 28.8 in | 38.1 in | -9.3 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 | 70.8 in (over 2 rows) | 108.3 in (over 3 rows) | -37.5 in |
| Cargo Volume, Minimum | 13.0 ft3 | 22.0 ft3 | -9 ft3 |
| Cargo Volume, Maximum | 13.0 ft3 | 62.0 ft3 | -49 ft3 |
None of our members have yet commented on the seat room and comfort of the 2006 BMW 6-Series.
None of our members have yet commented on the seat room and comfort of the 2023 Mercedes-Benz GLB.