| Body | 4dr SUV |
| Wheelbase | 123.4 in |
| Length | 205.0 in |
| Width | 79.9 in |
| Height | 71.8 in |
| Curb Weight | 5467 lb. |
| Fuel Capacity | 23.8 gal. |
| Headroom, Row 1 | 39.4 in |
| Shoulder Room, Row 1 | 59.3 in |
| Legroom, Row 1 | 40.3 in |
| Headroom, Row 2 | 40.2 in |
| Shoulder Room, Row 2 | 58.5 in |
| Legroom, Row 2 | 41.9 in |
| Legroom, Row 3 | 34.6 in |
| Total Legroom | 116.8 in (over 3 rows) |
| Cargo Volume, Minimum | 17.4 ft3 |
| Cargo Volume, Behind R2 | 42.7 ft3 |
| Cargo Volume, Maximum | 84.7 ft3 |
None of our members have yet commented on the seat room and comfort of the 2021 Mercedes-Benz GLS.
| Trim | GLS 450 | GLS 580 | AMG GLS 63 |
| Standard Engine | turbocharged 3.0L I6 Hybrid DOHC-4v 362 hp@5500 369 lb-ft@1600 | turbocharged 4.0L V8 Hybrid DOHC-4v 483 hp@5500 516 lb-ft@2000 | turbocharged 4.0L V8 Hybrid DOHC-4v 603 hp@5750 627 lb-ft@2500 |
| Standard Transmission | 9-speed manually-shiftable automatic | 9-speed manually-shiftable automatic | 9-speed manually-shiftable automatic |
| Standard Drivetrain | AWD | AWD | AWD |
| Standard Tires | 275/50HR20 tires | 275/45HR21 tires (front) 315/40HR21 tires (rear) | 275/50ZR21 tires (front) 315/45ZR21 tires (rear) |
| Optional Tires | 275/45HR21 tires (front) 315/40HR21 tires (rear) | 285/40ZR23 tires (front) 325/35ZR23 tires (rear) | 285/40ZR23 tires (front) 325/35ZR23 tires (rear) |
|   |   | 285/45ZR22 tires (front) 325/40ZR22 tires (rear) | 285/45ZR22 tires (front) 325/40ZR22 tires (rear) |
None of our members have yet commented on the powertrain of the 2021 Mercedes-Benz GLS.
None of our members have yet commented on the tires of the 2021 Mercedes-Benz GLS.