2006 BMW Z4 vs. 2009 Porsche Cayman
To start off, 2009 Porsche Cayman is newer by 3 year(s). Which means there will be less support and parts availability for 2006 BMW Z4. In addition, the cost of maintenance, including insurance, on 2006 BMW Z4 would be higher. At 3,385 cc, 2009 Porsche Cayman is equipped with a bigger engine. In terms of performance, 2006 BMW Z4 (343 HP @ 7900 RPM) has 52 more horse power than 2009 Porsche Cayman. (291 HP @ 6250 RPM). In normal driving conditions, 2006 BMW Z4 should accelerate faster than 2009 Porsche Cayman. With that said, vehicle weight also plays an important factor in acceleration. 2009 Porsche Cayman weights approximately 198 kg more than 2006 BMW Z4.
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, 2006 BMW Z4 (495 Nm @ 4900 RPM) has 155 more torque (in Nm) than 2009 Porsche Cayman. (340 Nm @ 4600 RPM). This means 2006 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2009 Porsche Cayman. 2009 Porsche Cayman has automatic transmission and 2006 BMW Z4 has manual transmission. 2006 BMW Z4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Porsche Cayman will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 BMW Z4 | 2009 Porsche Cayman | |
| Make | BMW | Porsche |
| Model | Z4 | Cayman |
| Year Released | 2006 | 2009 |
| Body Type | Coupe | Coupe |
| Engine Position | Front | Middle |
| Engine Size | 3246 cc | 3385 cc |
| Horse Power | 343 HP | 291 HP |
| Engine RPM | 7900 RPM | 6250 RPM |
| Torque | 495 Nm | 340 Nm |
| Torque RPM | 4900 RPM | 4600 RPM |
| Engine Compression Ratio | 11.5:1 | 11.1:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 249 km/hour | 267 km/hour |
| Acceleration 0-100mph | 5 seconds | 6.1 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1332 kg | 1530 kg |
| Vehicle Length | 4100 mm | 4350 mm |
| Vehicle Width | 1790 mm | 1310 mm |
| Vehicle Height | 1300 mm | 1810 mm |
| Wheelbase Size | 2500 mm | 2420 mm |
| Fuel Consumption Overall | 11.4 L/100km | 11 L/100km |
| Fuel Tank Capacity | 60 L | 64 L |
