2005 BMW M3 vs. 2007 Porsche Cayman
To start off, 2007 Porsche Cayman is newer by 2 year(s). Which means there will be less support and parts availability for 2005 BMW M3. In addition, the cost of maintenance, including insurance, on 2005 BMW M3 would be higher. At 3,244 cc (6 cylinders), 2005 BMW M3 is equipped with a bigger engine. In terms of performance, 2005 BMW M3 (320 HP @ 7400 RPM) has 75 more horse power than 2007 Porsche Cayman. (245 HP @ 6500 RPM). In normal driving conditions, 2005 BMW M3 should accelerate faster than 2007 Porsche Cayman. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW M3 weights approximately 275 kg more than 2007 Porsche Cayman. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 2005 BMW M3 (337 Nm) has 64 more torque (in Nm) than 2007 Porsche Cayman. (273 Nm). This means 2005 BMW M3 will have an easier job in driving up hills or pulling heavy equipment than 2007 Porsche Cayman.
Compare all specifications:
| 2005 BMW M3 | 2007 Porsche Cayman | |
| Make | BMW | Porsche |
| Model | M3 | Cayman |
| Year Released | 2005 | 2007 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Middle |
| Engine Size | 3244 cc | 2686 cc |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 320 HP | 245 HP |
| Engine RPM | 7400 RPM | 6500 RPM |
| Torque | 337 Nm | 273 Nm |
| Engine Bore Size | 87 mm | 86 mm |
| Engine Stroke Size | 91 mm | 78 mm |
| Engine Compression Ratio | 11.5:1 | 11.0:1 |
| Drive Type | Rear | Rear |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1690 kg | 1415 kg |
| Vehicle Length | 4500 mm | 4350 mm |
| Vehicle Width | 1790 mm | 1310 mm |
| Vehicle Height | 1380 mm | 1810 mm |
| Wheelbase Size | 2740 mm | 2420 mm |
| Fuel Consumption Highway | 10.2 L/100km | 7.6 L/100km |
| Fuel Consumption City | 14.7 L/100km | 10.7 L/100km |
| Fuel Consumption Overall | 13.1 L/100km | 13.8 L/100km |
| Fuel Tank Capacity | 63 L | 64 L |
