| Model Year | 2009 | 2015 | |
| Model | Audi A8 / S8 | Audi Q5 | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr Sedan, ext. | 4dr SUV | |
| Difference | |||
| Wheelbase | 3,073 mm | 2,807 mm | 1 mm |
| Length | 5,192 mm | 4,638 mm | 1 mm |
| Width | 1,895 mm | 1,880 mm | 0 mm |
| Height | 1,455 mm | 1,656 mm | 0 mm |
| Curb Weight | 1,995 kg | 1,850 kg | 0 kg |
| Fuel Capacity | 90 L | 75 L | 15 L |
| Headroom, Row 1 | 950 mm | 1,001 mm | 949 mm |
| Shoulder Room, Row 1 | 1,501 mm | 1,466 mm | 0 mm |
| Legroom, Row 1 | 1,049 mm | 1,041 mm | 0 mm |
| Headroom, Row 2 | 973 mm | 991 mm | -18 mm |
| Shoulder Room, Row 2 | 1,461 mm | 1,433 mm | 0 mm |
| Legroom, Row 2 | 1,074 mm | 950 mm | -949 mm |
| Total Legroom | 2,123 mm (over 2 rows) | 1,991 mm (over 2 rows) | 1 mm |
| Cargo Volume, Minimum | 413 L | 824 L | -411 L |
| Cargo Volume, Maximum | 14.6 | 1,623 L | 13.6 |
None of our members have yet commented on the seat room and comfort of the 2009 Audi A8 / S8.
None of our members have yet commented on the seat room and comfort of the 2015 Audi Q5.