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2021 Mercedes-Benz S-Class and 2018 BMW 3-Series Specifications
| Model Year | 2021 | 2018 | |
| Model | Mercedes-Benz S-Class | BMW 3-Series | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr Sedan, ext. | 4dr Sedan | |
| Difference | |||
| Wheelbase | 126.6 in | 110.6 in | 16 in |
| Length | 208.2 in | 182.5 in | 25.7 in |
| Width | 76.9 in | 71.3 in | 5.6 in |
| Height | 59.2 in | 56.3 in | 2.9 in |
| Curb Weight | 4610 lb. | 3501 lb. | 1109 lb. |
| Fuel Capacity | 22.1 gal. | 15.8 gal. | 6.3 gal. |
| Headroom, Row 1 | 42.1 in | 40.3 in | 1.8 in |
| Shoulder Room, Row 1 | 59.6 in | 55.1 in | 4.5 in |
| Legroom, Row 1 | 41.7 in | 42.0 in | -0.3 in |
| Headroom, Row 2 | 39.4 in | 37.7 in | 1.7 in |
| Shoulder Room, Row 2 | 59.0 in | 55.1 in | 3.9 in |
| Legroom, Row 2 | 43.8 in | 35.1 in | 8.7 in |
| Total Legroom | 85.5 in (over 2 rows) | 77.1 in (over 2 rows) | 8.4 in |
| Cargo Volume | 12.9 ft3 | 13.0 ft3 | -0.1 ft3 |
What Our Members Are Saying about the Seat Room and Comfort of the 2021 Mercedes-Benz S-Class
None of our members have yet commented on the seat room and comfort of the 2021 Mercedes-Benz S-Class.
What Our Members Are Saying about the Seat Room and Comfort of the 2018 BMW 3-Series
None of our members have yet commented on the seat room and comfort of the 2018 BMW 3-Series.
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