| Model Year | 2012 | 2021 | |
| Model | Porsche Cayenne | Mercedes-Benz S-Class | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr SUV | 4dr Sedan, ext. | |
| Difference | |||
| Wheelbase | 114.0 in | 126.6 in | -12.6 in |
| Length | 190.8 in | 208.2 in | -17.4 in |
| Width | 76.3 in | 76.9 in | -0.6 in |
| Height | 67.4 in | 59.2 in | 8.2 in |
| Curb Weight | 4398 lb. | 4610 lb. | -212 lb. |
| Fuel Capacity | 22.4 gal. | 22.1 gal. | 0.3 gal. |
| Headroom, Row 1 | 0.0 in | 42.1 in | -42.1 in |
| Shoulder Room, Row 1 | 0.0 in | 59.6 in | -59.6 in |
| Legroom, Row 1 | 0.0 in | 41.7 in | -41.7 in |
| Headroom, Row 2 | 0.0 in | 39.4 in | -39.4 in |
| Shoulder Room, Row 2 | 0.0 in | 59.0 in | -59 in |
| Legroom, Row 2 | 0.0 in | 43.8 in | -43.8 in |
| Total Legroom | 0 in (over 1 rows) | 85.5 in (over 2 rows) | -85.5 in |
| Cargo Volume, Minimum | 23.7 ft3 | 12.9 ft3 | 10.8 ft3 |
| Cargo Volume, Maximum | 62.9 ft3 | 12.9 ft3 | 50 ft3 |
| 2012 Porsche Cayenne Seat Room and Comfort: Pros | ||
| Year | Body/Powertrain | Comment |
| 2013 | 4dr SUV turbocharged 240hp 3.0L V6 Diesel 8-speed shiftable automatic AWD |
The 14 way memory seats with a/c fit the bill with 2 drivers of varying heights and my need to keep cool duirng 3 years of treatment for a life threatening disease see full Porsche Cayenne review |
None of our members have yet commented on the seat room and comfort of the 2021 Mercedes-Benz S-Class.