2007 BMW Convertible vs. 2009 Porsche Cayman
To start off, 2009 Porsche Cayman is newer by 2 year(s). Which means there will be less support and parts availability for 2007 BMW Convertible. In addition, the cost of maintenance, including insurance, on 2007 BMW Convertible would be higher. At 4,799 cc (8 cylinders), 2007 BMW Convertible is equipped with a bigger engine. In terms of performance, 2007 BMW Convertible (363 HP @ 6300 RPM) has 72 more horse power than 2009 Porsche Cayman. (291 HP @ 6250 RPM). In normal driving conditions, 2007 BMW Convertible should accelerate faster than 2009 Porsche Cayman. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW Convertible weights approximately 425 kg more than 2009 Porsche Cayman. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2007 BMW Convertible (490 Nm @ 3600 RPM) has 150 more torque (in Nm) than 2009 Porsche Cayman. (340 Nm @ 4400 RPM). This means 2007 BMW Convertible will have an easier job in driving up hills or pulling heavy equipment than 2009 Porsche Cayman.
Compare all specifications:
| 2007 BMW Convertible | 2009 Porsche Cayman | |
| Make | BMW | Porsche |
| Model | Convertible | Cayman |
| Year Released | 2007 | 2009 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Middle |
| Engine Size | 4799 cc | 3385 cc |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 363 HP | 291 HP |
| Engine RPM | 6300 RPM | 6250 RPM |
| Torque | 490 Nm | 340 Nm |
| Torque RPM | 3600 RPM | 4400 RPM |
| Engine Compression Ratio | 10.5:1 | 11.1:1 |
| Fuel Type | Gasoline | Gasoline |
| Top Speed | 250 km/hour | 275 km/hour |
| Acceleration 0-100mph | 5.7 seconds | 5.3 seconds |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1850 kg | 1425 kg |
| Vehicle Length | 4830 mm | 4350 mm |
| Vehicle Width | 1380 mm | 1310 mm |
| Vehicle Height | 1860 mm | 1810 mm |
| Wheelbase Size | 2790 mm | 2420 mm |
| Fuel Tank Capacity | 70 L | 64 L |
