| Model Year | 2020 | 2024 | |
| Model | Mercedes-Benz GLS | Audi A8 / S8 | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr SUV | 4dr Sedan, ext. | |
| Difference | |||
| Wheelbase | 3,134 mm | 3,127 mm | 0 mm |
| Length | 5,207 mm | 5,321 mm | 0 mm |
| Width | 2,029 mm | 1,946 mm | 1 mm |
| Height | 1,824 mm | 1,481 mm | 0 mm |
| Curb Weight | 2,480 kg | 2,160 kg | 0 kg |
| Fuel Capacity | 90 L | 82 L | 8 L |
| Headroom, Row 1 | 1,001 mm | 973 mm | -972 mm |
| Shoulder Room, Row 1 | 1,506 mm | 1,501 mm | 0 mm |
| Legroom, Row 1 | 1,024 mm | 1,054 mm | 0 mm |
| Headroom, Row 2 | 1,021 mm | 978 mm | -977 mm |
| Shoulder Room, Row 2 | 1,486 mm | 1,463 mm | 0 mm |
| Legroom, Row 2 | 1,064 mm | 1,125 mm | 0 mm |
| Legroom, Row 3 | 879 mm | 0 mm | 879 mm |
| Total Legroom | 2,967 mm (over 3 rows) | 2,179 mm (over 2 rows) | 0 mm |
| Cargo Volume, Minimum | 493 L | 354 L | 139 L |
| Cargo Volume, Behind R2 | 1,209 L | 12.5 | -11.5 L |
| Cargo Volume, Maximum | 2,398 L | 12.5 | -10.5 L |
None of our members have yet commented on the seat room and comfort of the 2020 Mercedes-Benz GLS.
None of our members have yet commented on the seat room and comfort of the 2024 Audi A8 / S8.