2009 BMW M3 vs. 2008 Porsche Cayenne
To start off, 2009 BMW M3 is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Porsche Cayenne. In addition, the cost of maintenance, including insurance, on 2008 Porsche Cayenne would be higher. At 4,511 cc (8 cylinders), 2008 Porsche Cayenne is equipped with a bigger engine. In terms of performance, 2009 BMW M3 (414 HP @ 8300 RPM) has 64 more horse power than 2008 Porsche Cayenne. (350 HP @ 6000 RPM). In normal driving conditions, 2009 BMW M3 should accelerate faster than 2008 Porsche Cayenne. With that said, vehicle weight also plays an important factor in acceleration. 2008 Porsche Cayenne weights approximately 790 kg more than 2009 BMW M3.
Because 2008 Porsche Cayenne is four wheel drive (4WD), it will have significant more traction and grip than 2009 BMW M3. 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 Porsche Cayenne (420 Nm @ 2500 RPM) has 20 more torque (in Nm) than 2009 BMW M3. (400 Nm @ 3900 RPM). This means 2008 Porsche Cayenne will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW M3.
Compare all specifications:
| 2009 BMW M3 | 2008 Porsche Cayenne | |
| Make | BMW | Porsche |
| Model | M3 | Cayenne |
| Year Released | 2009 | 2008 |
| Engine Position | Front | Front |
| Engine Size | 3999 cc | 4511 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 414 HP | 350 HP |
| Engine RPM | 8300 RPM | 6000 RPM |
| Torque | 400 Nm | 420 Nm |
| Torque RPM | 3900 RPM | 2500 RPM |
| Engine Bore Size | 92 mm | 93 mm |
| Engine Stroke Size | 75.2 mm | 83 mm |
| Engine Compression Ratio | 12.0:1 | 11.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Top Speed | 250 km/hour | 242 km/hour |
| Acceleration 0-100mph | 4.9 seconds | 6.8 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1530 kg | 2320 kg |
| Vehicle Length | 4590 mm | 4790 mm |
| Vehicle Width | 1450 mm | 1930 mm |
| Vehicle Height | 1760 mm | 1710 mm |
| Wheelbase Size | 2770 mm | 2860 mm |
| Fuel Consumption Overall | 12.4 L/100km | 16 L/100km |
| Fuel Tank Capacity | 63 L | 100 L |
