2008 BMW 645 vs. 2008 Porsche Cayenne
To start off, both 2008 BMW 645 and 2008 Porsche Cayenne were released in the same year (2008). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 4,398 cc (8 cylinders), 2008 BMW 645 is equipped with a bigger engine. In terms of performance, 2008 BMW 645 (328 HP @ 6100 RPM) has 81 more horse power than 2008 Porsche Cayenne. (247 HP @ 6000 RPM). In normal driving conditions, 2008 BMW 645 should accelerate faster than 2008 Porsche Cayenne. With that said, vehicle weight also plays an important factor in acceleration. 2008 Porsche Cayenne weights approximately 665 kg more than 2008 BMW 645.
Because 2008 Porsche Cayenne is four wheel drive (4WD), it will have significant more traction and grip than 2008 BMW 645. In wet, icy, snow, or gravel driving conditions, 2008 Porsche Cayenne will offer significantly more control. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2008 BMW 645 (450 Nm @ 3600 RPM) has 140 more torque (in Nm) than 2008 Porsche Cayenne. (310 Nm @ 5500 RPM). This means 2008 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2008 Porsche Cayenne.
Compare all specifications:
| 2008 BMW 645 | 2008 Porsche Cayenne | |
| Make | BMW | Porsche |
| Model | 645 | Cayenne |
| Year Released | 2008 | 2008 |
| Body Type | Coupe | SUV |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 3189 cc |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 328 HP | 247 HP |
| Engine RPM | 6100 RPM | 6000 RPM |
| Torque | 450 Nm | 310 Nm |
| Torque RPM | 3600 RPM | 5500 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Acceleration 0-100mph | 5.6 seconds | 9.1 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1690 kg | 2355 kg |
| Vehicle Length | 4830 mm | 4790 mm |
| Vehicle Width | 1860 mm | 1930 mm |
| Vehicle Height | 1380 mm | 1710 mm |
| Wheelbase Size | 2790 mm | 2860 mm |
| Fuel Consumption Overall | 11.8 L/100km | 17.9 L/100km |
| Fuel Tank Capacity | 70 L | 100 L |
