| Model Year | 2012 | 2023 | |
| Model | Mercedes-Benz R-Class | Audi A8 / S8 | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr SUV | 4dr Sedan, ext. | |
| Difference | |||
| Wheelbase | 3,216 mm | 3,127 mm | 0 mm |
| Length | 5,159 mm | 5,321 mm | 0 mm |
| Width | 1,958 mm | 1,946 mm | 0 mm |
| Height | 1,661 mm | 1,481 mm | 0 mm |
| Curb Weight | 2,250 kg | 2,160 kg | 0 kg |
| Fuel Capacity | 80 L | 82 L | -2 L |
| Headroom, Row 1 | 1,011 mm | 973 mm | -972 mm |
| Shoulder Room, Row 1 | 1,532 mm | 1,501 mm | 0 mm |
| Legroom, Row 1 | 1,011 mm | 1,054 mm | 0 mm |
| Headroom, Row 2 | 1,026 mm | 978 mm | -977 mm |
| Shoulder Room, Row 2 | 1,514 mm | 1,463 mm | 0 mm |
| Legroom, Row 2 | 919 mm | 1,125 mm | 918 mm |
| Headroom, Row 3 | 945 mm | 0 mm | 945 mm |
| Shoulder Room, Row 3 | 1,341 mm | 0 mm | 1 mm |
| Legroom, Row 3 | 823 mm | 0 mm | 823 mm |
| Total Legroom | 2,753 mm (over 3 rows) | 2,179 mm (over 2 rows) | 0 mm |
| Cargo Volume, Minimum | 430 L | 354 L | 76 L |
| Cargo Volume, Behind R2 | 1,195 L | 12.5 | -11.5 L |
| Cargo Volume, Maximum | 2,407 L | 12.5 | -10.5 L |
None of our members have yet commented on the seat room and comfort of the 2012 Mercedes-Benz R-Class.
None of our members have yet commented on the seat room and comfort of the 2023 Audi A8 / S8.