| Model Year | 2006 | 2008 | |
| Model | Audi A8 | Mercedes-Benz C-Class | |
| Engine | 6.0L W12 DOHC-4v 331 kW@6200 580 Nm@4000 |
6.2L V8 DOHC-4v 336 kW@6800 601 Nm@5000 |
|
| Transmission | 6-speed shiftable automatic | 7-speed shiftable automatic | |
| Drivetrain | AWD | RWD | |
| Body | 4dr Sedan | 4dr Sedan | |
| Difference | |||
| Wheelbase | 2,944 mm | 2,761 mm | 0 mm |
| Length | 5,062 mm | 4,630 mm | 1 mm |
| Width | 1,895 mm | 1,770 mm | 0 mm |
| Height | 1,445 mm | 1,430 mm | 0 mm |
| Curb Weight | 2,095 kg | 1,661 kg | 1 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 | 1,389 mm | 0 mm |
| Hip Room, Row 1 | 0 mm | 1,328 mm | -1 mm |
| Legroom, Row 1 | 1,052 mm | 1,059 mm | 0 mm |
| Headroom, Row 2 | 965 mm | 937 mm | 28 mm |
| Shoulder Room, Row 2 | 1,461 mm | 1,400 mm | 0 mm |
| Hip Room, Row 2 | 0 mm | 1,394 mm | -1 mm |
| Legroom, Row 2 | 955 mm | 848 mm | 107 mm |
| Total Legroom | 2,007 mm (over 2 rows) | 1,908 mm (over 2 rows) | 1 mm |
| Cargo Volume | 413 L | 351 L | 62 L |
| 2006 Audi A8 Seat Room and Comfort: Pros | ||
| Year | Body/Powertrain | Comment |
| 2005 | 4dr Sedan, ext. 330-horsepower 4.2L V8 6-speed shiftable automatic AWD |
TOTAL COMFORT. SEAT CAN BE ADJUSTED TO GIVE COMFORT FOR BACK AND LEGS. see full Audi A8 review |
| 2008 Mercedes-Benz C-Class Seat Room and Comfort: Pros | ||
| Year | Body/Powertrain | Comment |
| 2009 | 4dr Sedan 228-horsepower 3.0L V6 7-speed shiftable automatic RWD |
The seat causes no discomfort to my tailbone like many ohter cars. Furthermore, the padding is firm and feels like it will last a long time. see full Mercedes-Benz C-Class review |
| 2009 | 4dr Sedan 228-horsepower 3.0L V6 7-speed shiftable automatic RWD |
Mercedes-Benz makes the best seats in the business, period. Even after a 10 hour drive, my back did not hurt. see full Mercedes-Benz C-Class review |
| 2008 Mercedes-Benz C-Class Seat Room and Comfort: Cons | ||
| Year | Body/Powertrain | Comment |
| 2009 | 4dr Sedan supercharged 181hp 1.8L I4 5-speed shiftable automatic RWD |
Not much leg room when compared to other luxury entries. No flat floor so a 3rd passenger in the rear is not possible. see full Mercedes-Benz C-Class review |
| 2009 | 4dr Sedan supercharged 181hp 1.8L I4 5-speed shiftable automatic RWD |
Center console and stack cut into front side leg room, my left leg is always up against the center console. see full Mercedes-Benz C-Class review |
| 2008 | 4dr Sedan 268-horsepower 3.5L V6 7-speed shiftable automatic RWD |
just ok see full Mercedes-Benz C-Class review |
| 2008 | 4dr Sedan supercharged 181hp 1.8L I4 5-speed shiftable automatic RWD |
too tight back there. see full Mercedes-Benz C-Class review |