2009 Porsche Cayman vs. 2013 BMW 7 Series
To start off, 2013 BMW 7 Series is newer by 4 year(s). Which means there will be less support and parts availability for 2009 Porsche Cayman. In addition, the cost of maintenance, including insurance, on 2009 Porsche Cayman would be higher. At 2,979 cc (6 cylinders), 2013 BMW 7 Series is equipped with a bigger engine. In terms of performance, 2013 BMW 7 Series (311 HP @ 5800 RPM) has 69 more horse power than 2009 Porsche Cayman. (242 HP @ 6500 RPM) In normal driving conditions, 2013 BMW 7 Series should accelerate faster than 2009 Porsche Cayman. With that said, vehicle weight also plays an important factor in acceleration. 2013 BMW 7 Series weights approximately 443 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.
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, 2013 BMW 7 Series (447 Nm @ 4500 RPM) has 174 more torque (in Nm) than 2009 Porsche Cayman. (273 Nm @ 4600 RPM). This means 2013 BMW 7 Series will have an easier job in driving up hills or pulling heavy equipment than 2009 Porsche Cayman. 2013 BMW 7 Series has automatic transmission and 2009 Porsche Cayman has manual transmission. 2009 Porsche Cayman will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2013 BMW 7 Series will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Porsche Cayman | 2013 BMW 7 Series | |
| Make | Porsche | BMW |
| Model | Cayman | 7 Series |
| Year Released | 2009 | 2013 |
| Body Type | Coupe | Sedan |
| Engine Position | Middle | Front |
| Engine Size | 2687 cc | 2979 cc |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 242 HP | 311 HP |
| Engine RPM | 6500 RPM | 5800 RPM |
| Torque | 273 Nm | 447 Nm |
| Torque RPM | 4600 RPM | 4500 RPM |
| Engine Bore Size | 85.5 mm | 84 mm |
| Engine Stroke Size | 78 mm | 89 mm |
| Engine Compression Ratio | 11.3:1 | 10.2 :1 |
| Fuel Type | Gasoline | Gasoline |
| Top Speed | 258 km/hour | 250 km/hour |
| Acceleration 0-100mph | 6.1 seconds | 5.6 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | 8-speed automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1530 kg | 1973 kg |
| Vehicle Length | 4350 mm | 5214 mm |
| Vehicle Width | 1310 mm | 2134 mm |
| Vehicle Height | 1810 mm | 1481 mm |
| Wheelbase Size | 2420 mm | 3210 mm |
| Fuel Tank Capacity | 64 L | 80 L |
