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2021 BMW 4-Series and 2015 Mercedes-Benz SL Specifications
| Model Year | 2021 | 2015 | |
| Model | BMW 4-Series | Mercedes-Benz SL | |
| Engine | turbocharged 3.0L I6 DOHC-4v 503 hp@6250 479 lb-ft@2750 |
turbocharged 5.5L V8 DOHC-4v 557 hp@5250 664 lb-ft@2000 |
|
| Transmission | 8-speed shiftable automatic | 7-speed shiftable automatic | |
| Drivetrain | RWD | RWD | |
| Body | 2dr Convertible | 2dr Hardtop conv. | |
| Difference | |||
| Wheelbase | 112.2 in | 101.8 in | 10.4 in |
| Length | 187.9 in | 181.8 in | 6.1 in |
| Width | 72.9 in | 73.9 in | -1 in |
| Height | 54.6 in | 51.8 in | 2.8 in |
| Curb Weight | 4220 lb. | 4068 lb. | 152 lb. |
| Fuel Capacity | 15.6 gal. | 19.8 gal. | -4.2 gal. |
| Headroom, Row 1 | 40.6 in | 39.1 in | 1.5 in |
| Shoulder Room, Row 1 | 55.1 in | 55.5 in | -0.4 in |
| Legroom, Row 1 | 41.8 in | 42.9 in | -1.1 in |
| Headroom, Row 2 | 36.1 in | 0.0 in | 36.1 in |
| Shoulder Room, Row 2 | 43.9 in | 0.0 in | 43.9 in |
| Legroom, Row 2 | 32.5 in | 0.0 in | 32.5 in |
| Total Legroom | 74.3 in (over 2 rows) | 42.9 in (over 1 rows) | 31.4 in |
| Cargo Volume, Minimum | 7.8 ft3 | 8.5 ft3 | -0.7 ft3 |
| Cargo Volume, Maximum | 7.8 ft3 | 13.5 ft3 | -5.7 ft3 |
What Our Members Are Saying about the Seat Room and Comfort of the 2021 BMW 4-Series
None of our members have yet commented on the seat room and comfort of the 2021 BMW 4-Series.
What Our Members Are Saying about the Seat Room and Comfort of the 2015 Mercedes-Benz SL
None of our members have yet commented on the seat room and comfort of the 2015 Mercedes-Benz SL.
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