| Model Year | 2012 | 2020 | |
| Model | BMW Z4 | Mercedes-Benz GLA | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 2dr Hardtop conv. | 4dr SUV | |
| Difference | |||
| Wheelbase | 98.3 in | 106.3 in | -8 in |
| Length | 166.9 in | 173.9 in | -7 in |
| Width | 70.5 in | 71.0 in | -0.5 in |
| Height | 50.8 in | 60.0 in | -9.2 in |
| Curb Weight | 3263 lb. | 3296 lb. | -33 lb. |
| Fuel Capacity | 14.5 gal. | 14.8 gal. | -0.3 gal. |
| Headroom, Row 1 | 39.1 in | 40.0 in | -0.9 in |
| Shoulder Room, Row 1 | 53.3 in | 54.8 in | -1.5 in |
| Legroom, Row 1 | 42.2 in | 41.9 in | 0.3 in |
| Headroom, Row 2 | 0.0 in | 38.4 in | -38.4 in |
| Shoulder Room, Row 2 | 0.0 in | 53.1 in | -53.1 in |
| Legroom, Row 2 | 0.0 in | 33.9 in | -33.9 in |
| Total Legroom | 42.2 in (over 1 rows) | 75.8 in (over 2 rows) | -33.6 in |
| Cargo Volume, Minimum | 10.9 ft3 | 17.2 ft3 | -6.3 ft3 |
| Cargo Volume, Maximum | 10.9 ft3 | 43.6 ft3 | -32.7 ft3 |
| 2012 BMW Z4 Seat Room and Comfort: Cons | ||
| Year | Body/Powertrain | Comment |
| 2011 | 2dr Hardtop conv. 255-horsepower 3.0L I6 6-speed shiftable automatic RWD |
What rear seat? see full BMW Z4 review |
None of our members have yet commented on the seat room and comfort of the 2020 Mercedes-Benz GLA.