| Model Year | 2006 | 2009 | |
| Model | Audi A6 | Mercedes-Benz CL-Class | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr Sedan | 2dr Coupe | |
| Difference | |||
| Wheelbase | 111.9 in | 116.3 in | -4.4 in |
| Length | 193.5 in | 199.4 in | -5.9 in |
| Width | 73.1 in | 73.7 in | -0.6 in |
| Height | 57.5 in | 55.8 in | 1.7 in |
| Curb Weight | 4012 lb. | 4650 lb. | -638 lb. |
| Fuel Capacity | 21.1 gal. | 23.8 gal. | -2.7 gal. |
| Headroom, Row 1 | 38.7 in | 36.9 in | 1.8 in |
| Shoulder Room, Row 1 | 57.1 in | 59.3 in | -2.2 in |
| Hip Room, Row 1 | 0.0 in | 62.0 in | -62 in |
| Legroom, Row 1 | 41.3 in | 42.2 in | -0.9 in |
| Headroom, Row 2 | 37.8 in | 36.4 in | 1.4 in |
| Shoulder Room, Row 2 | 55.9 in | 55.2 in | 0.7 in |
| Hip Room, Row 2 | 0.0 in | 56.0 in | -56 in |
| Legroom, Row 2 | 36.9 in | 32.2 in | 4.7 in |
| Total Legroom | 78.2 in (over 2 rows) | 74.4 in (over 2 rows) | 3.8 in |
| Cargo Volume | 15.9 ft3 | 12.9 ft3 | 3 ft3 |
None of our members have yet commented on the seat room and comfort of the 2006 Audi A6.
None of our members have yet commented on the seat room and comfort of the 2009 Mercedes-Benz CL-Class.