| Model Year | 2009 | 2017 | |
| Model | Audi A8 / S8 | Mercedes-Benz C-Class | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr Sedan | 4dr Sedan | |
| Difference | |||
| Wheelbase | 2,944 mm | 2,840 mm | 0 mm |
| Length | 5,062 mm | 4,686 mm | 1 mm |
| Width | 1,895 mm | 1,811 mm | 0 mm |
| Height | 1,445 mm | 1,443 mm | 0 mm |
| Curb Weight | 1,945 kg | 1,550 kg | 0 kg |
| Fuel Capacity | 90 L | 66 L | 24 L |
| Headroom, Row 1 | 947 mm | 942 mm | 5 mm |
| Shoulder Room, Row 1 | 1,501 mm | 1,405 mm | 0 mm |
| Legroom, Row 1 | 1,052 mm | 1,059 mm | 0 mm |
| Headroom, Row 2 | 965 mm | 942 mm | 23 mm |
| Shoulder Room, Row 2 | 1,461 mm | 1,397 mm | 0 mm |
| Legroom, Row 2 | 955 mm | 894 mm | 61 mm |
| Total Legroom | 2,007 mm (over 2 rows) | 1,953 mm (over 2 rows) | 1 mm |
| Cargo Volume | 413 L | 357 L | 56 L |
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 2017 Mercedes-Benz C-Class.