| Model Year | 2021 | 2012 | |
| Model | Mercedes-Benz GLB | Honda Insight | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr SUV | 4dr Hatch | |
| Difference | |||
| Wheelbase | 111.4 in | 100.4 in | 11 in |
| Length | 182.4 in | 172.3 in | 10.1 in |
| Width | 72.2 in | 66.7 in | 5.5 in |
| Height | 65.3 in | 56.2 in | 9.1 in |
| Curb Weight | 3638 lb. | 2747 lb. | 891 lb. |
| Fuel Capacity | 15.9 gal. | 10.6 gal. | 5.3 gal. |
| Headroom, Row 1 | 40.7 in | 38.4 in | 2.3 in |
| Shoulder Room, Row 1 | 55.9 in | 52.7 in | 3.2 in |
| Hip Room, Row 1 | 0.0 in | 51.6 in | -51.6 in |
| Legroom, Row 1 | 41.1 in | 42.3 in | -1.2 in |
| Headroom, Row 2 | 39.3 in | 36.4 in | 2.9 in |
| Shoulder Room, Row 2 | 54.9 in | 50.4 in | 4.5 in |
| Hip Room, Row 2 | 0.0 in | 48.7 in | -48.7 in |
| Legroom, Row 2 | 38.1 in | 33.0 in | 5.1 in |
| Headroom, Row 3 | 34.8 in | 0.0 in | 34.8 in |
| Shoulder Room, Row 3 | 43.8 in | 0.0 in | 43.8 in |
| Legroom, Row 3 | 29.1 in | 0.0 in | 29.1 in |
| Total Legroom | 108.3 in (over 3 rows) | 75.3 in (over 2 rows) | 33 in |
| Cargo Volume, Minimum | 22.0 ft3 | 15.9 ft3 | 6.1 ft3 |
| Cargo Volume, Maximum | 62.0 ft3 | 31.5 ft3 | 30.5 ft3 |
None of our members have yet commented on the seat room and comfort of the 2021 Mercedes-Benz GLB.
None of our members have yet commented on the seat room and comfort of the 2012 Honda Insight.