| Model Year | 2017 | 2011 | |
| Model | Mercedes-Benz C-Class | BMW Z4 | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 2dr Convertible | 2dr Hardtop conv. | |
| Difference | |||
| Wheelbase | 2,840 mm | 2,497 mm | 0 mm |
| Length | 4,686 mm | 4,239 mm | 0 mm |
| Width | 1,811 mm | 1,791 mm | 0 mm |
| Height | 1,410 mm | 1,290 mm | 0 mm |
| Curb Weight | 1,740 kg | 1,470 kg | 0 kg |
| Fuel Capacity | 66 L | 55 L | 11 L |
| Headroom, Row 1 | 986 mm | 993 mm | -7 mm |
| Shoulder Room, Row 1 | 1,392 mm | 1,354 mm | 0 mm |
| Legroom, Row 1 | 1,067 mm | 1,072 mm | 0 mm |
| Headroom, Row 2 | 904 mm | 0 mm | 904 mm |
| Shoulder Room, Row 2 | 1,313 mm | 0 mm | 1 mm |
| Legroom, Row 2 | 813 mm | 0 mm | 813 mm |
| Total Legroom | 1,880 mm (over 2 rows) | 1,072 mm (over 1 row) | 0 mm |
| Cargo Volume | 249 L | 309 L | -60 L |
None of our members have yet commented on the seat room and comfort of the 2017 Mercedes-Benz C-Class.
| 2011 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 |