2006 BMW 645 vs. 2007 Porsche Cayenne
To start off, 2007 Porsche Cayenne is newer by 1 year(s). Which means there will be less support and parts availability for 2006 BMW 645. In addition, the cost of maintenance, including insurance, on 2006 BMW 645 would be higher. At 4,398 cc (8 cylinders), 2006 BMW 645 is equipped with a bigger engine. In terms of performance, 2006 BMW 645 (328 HP @ 6100 RPM) has 81 more horse power than 2007 Porsche Cayenne. (247 HP @ 6000 RPM). In normal driving conditions, 2006 BMW 645 should accelerate faster than 2007 Porsche Cayenne. With that said, vehicle weight also plays an important factor in acceleration. 2007 Porsche Cayenne weights approximately 545 kg more than 2006 BMW 645.
Because 2007 Porsche Cayenne is four wheel drive (4WD), it will have significant more traction and grip than 2006 BMW 645. In wet, icy, snow, or gravel driving conditions, 2007 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, 2006 BMW 645 (450 Nm @ 3600 RPM) has 140 more torque (in Nm) than 2007 Porsche Cayenne. (310 Nm @ 5500 RPM). This means 2006 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2007 Porsche Cayenne. 2006 BMW 645 has automatic transmission and 2007 Porsche Cayenne has manual transmission. 2007 Porsche Cayenne will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2006 BMW 645 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 BMW 645 | 2007 Porsche Cayenne | |
| Make | BMW | Porsche |
| Model | 645 | Cayenne |
| Year Released | 2006 | 2007 |
| 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 | Gasoline |
| Top Speed | 250 km/hour | 214 km/hour |
| Acceleration 0-100mph | 5.6 seconds | 9.4 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1810 kg | 2355 kg |
| Vehicle Length | 4830 mm | 4790 mm |
| Vehicle Width | 1860 mm | 1710 mm |
| Vehicle Height | 1380 mm | 1930 mm |
| Wheelbase Size | 2790 mm | 2860 mm |
| Fuel Consumption Overall | 13.3 L/100km | 17.9 L/100km |
| Fuel Tank Capacity | 70 L | 100 L |
