| Model Year | 2023 | 2008 | |
| Model | Porsche Cayenne Coupe | Mercedes-Benz GL | |
| Engine | |||
| Transmission | |||
| Drivetrain | |||
| Body | 4dr SUV | 4dr SUV | |
| Difference | |||
| Wheelbase | 114.0 in | 121.1 in | -7.1 in |
| Length | 194.2 in | 200.6 in | -6.4 in |
| Width | 78.1 in | 76.0 in | 2.1 in |
| Height | 66.0 in | 72.4 in | -6.4 in |
| Curb Weight | 4663 lb. | 5280 lb. | -617 lb. |
| Fuel Capacity | 23.7 gal. | 26.0 gal. | -2.3 gal. |
| Headroom, Row 1 | 0.0 in | 40.1 in | -40.1 in |
| Shoulder Room, Row 1 | 0.0 in | 58.3 in | -58.3 in |
| Legroom, Row 1 | 0.0 in | 40.3 in | -40.3 in |
| Headroom, Row 2 | 0.0 in | 40.6 in | -40.6 in |
| Shoulder Room, Row 2 | 0.0 in | 58.9 in | -58.9 in |
| Legroom, Row 2 | 0.0 in | 39.5 in | -39.5 in |
| Headroom, Row 3 | 0.0 in | 38.2 in | -38.2 in |
| Shoulder Room, Row 3 | 0.0 in | 50.5 in | -50.5 in |
| Legroom, Row 3 | 0.0 in | 34.2 in | -34.2 in |
| Total Legroom | 0 in (over 1 rows) | 114 in (over 3 rows) | -114 in |
| Cargo Volume, Minimum | 22.0 ft3 | 14.3 ft3 | 7.7 ft3 |
| Cargo Volume, Behind R2 | 22.0 | 43.8 ft3 | -21.8 |
| Cargo Volume, Maximum | 54.3 ft3 | 83.3 ft3 | -29 ft3 |
None of our members have yet commented on the seat room and comfort of the 2023 Porsche Cayenne Coupe.
| 2008 Mercedes-Benz GL Seat Room and Comfort: Pros | ||
| Year | Body/Powertrain | Comment |
| 2009 | 4dr SUV 335-horsepower 4.7L V8 7-speed shiftable automatic AWD |
This SUV has a third row seat that can accommodate adults comfortably, without sacrificing braking and safety. see full Mercedes-Benz GL review |
| 2008 | 4dr SUV turbocharged 215hp 3.0L V6 Diesel 7-speed shiftable automatic AWD |
Excellent, usable 3rd row seating see full Mercedes-Benz GL review |
| 2008 | 4dr SUV turbocharged 215hp 3.0L V6 Diesel 7-speed shiftable automatic AWD |
Roomy and adjustable. see full Mercedes-Benz GL review |
| 2008 | 4dr SUV turbocharged 215hp 3.0L V6 Diesel 7-speed shiftable automatic AWD |
Second row is good. Third row is EXCELLENT. Bigger than some of the monster American SUVs. see full Mercedes-Benz GL review |
| 2007 | 4dr SUV 335-horsepower 4.7L V8 7-speed shiftable automatic AWD |
Large third row seating to accomodate adults in far back row... see full Mercedes-Benz GL review |