| Model Year | 2021 | 2009 | |
| Model | Porsche Cayenne Coupe | Mercedes-Benz M-Class | |
| Engine | turbocharged 4.0L V8 DOHC-4v 403 kW@5750 770 Nm@1960 |
6.2L V8 DOHC-4v 375 kW@6800 630 Nm@5200 |
|
| Transmission | 8-speed shiftable automatic | 7-speed shiftable automatic | |
| Drivetrain | AWD | AWD | |
| Body | 4dr SUV | 4dr SUV | |
| Difference | |||
| Wheelbase | 2,896 mm | 2,913 mm | 0 mm |
| Length | 4,933 mm | 4,788 mm | 0 mm |
| Width | 1,984 mm | 1,910 mm | 0 mm |
| Height | 1,676 mm | 1,781 mm | 0 mm |
| Curb Weight | 2,279 kg | 2,310 kg | 0 kg |
| Fuel Capacity | 90 L | 95 L | -5 L |
| Headroom, Row 1 | 0 mm | 1,013 mm | -1 mm |
| Shoulder Room, Row 1 | 0 mm | 1,521 mm | -1 mm |
| Hip Room, Row 1 | 0 mm | 1,420 mm | -1 mm |
| Legroom, Row 1 | 0 mm | 1,072 mm | -1 mm |
| Headroom, Row 2 | 0 mm | 1,011 mm | -1 mm |
| Shoulder Room, Row 2 | 0 mm | 1,519 mm | -1 mm |
| Hip Room, Row 2 | 0 mm | 1,427 mm | -1 mm |
| Legroom, Row 2 | 0 mm | 1,016 mm | -1 mm |
| Total Legroom | 0 mm (over 1 row) | 2,088 mm (over 2 rows) | -2 mm |
| Cargo Volume, Minimum | 623 L | 833 L | -210 L |
| Cargo Volume, Maximum | 1,538 L | 2,050 L | -1 L |
None of our members have yet commented on the seat room and comfort of the 2021 Porsche Cayenne Coupe.
| 2009 Mercedes-Benz M-Class Seat Room and Comfort: Pros | ||
| Year | Body/Powertrain | Comment |
| 2008 | 4dr SUV turbocharged 215hp 3.0L V6 Diesel 7-speed shiftable automatic AWD |
Bottom seat cushions are long enough for taller drivers. Padding is not too firm or too soft. Excellent support and an upright, easy-chair seating position, instead of having to extend your legs horizontally to get legroom. Results in no low back pain. see full Mercedes-Benz M-Class review |
| 2009 Mercedes-Benz M-Class Seat Room and Comfort: Cons | ||
| Year | Body/Powertrain | Comment |
| 2008 | 4dr SUV 382-horsepower 5.5L V8 7-speed shiftable automatic AWD |
very still and uncomfortable for long drives see full Mercedes-Benz M-Class review |