2006 BMW Z4 vs. 2012 Porsche Cayenne
To start off, 2012 Porsche Cayenne is newer by 6 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 4,806 cc (8 cylinders), 2012 Porsche Cayenne is equipped with a bigger engine. In terms of performance, 2012 Porsche Cayenne (500 HP @ 6000 RPM) has 271 more horse power than 2006 BMW Z4. (229 HP @ 5900 RPM) In normal driving conditions, 2012 Porsche Cayenne should accelerate faster than 2006 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2012 Porsche Cayenne weights approximately 540 kg more than 2006 BMW Z4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2012 Porsche Cayenne is four wheel drive (4WD), it will have significant more traction and grip than 2006 BMW Z4. In wet, icy, snow, or gravel driving conditions, 2012 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, 2012 Porsche Cayenne (699 Nm @ 2250 RPM) has 399 more torque (in Nm) than 2006 BMW Z4. (300 Nm @ 3500 RPM). This means 2012 Porsche Cayenne will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW Z4. 2012 Porsche Cayenne 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. 2012 Porsche Cayenne will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 BMW Z4 | 2012 Porsche Cayenne | |
| Make | BMW | Porsche |
| Model | Z4 | Cayenne |
| Year Released | 2006 | 2012 |
| Body Type | Convertible | SUV |
| Engine Position | Front | Front |
| Engine Size | 2979 cc | 4806 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 229 HP | 500 HP |
| Engine RPM | 5900 RPM | 6000 RPM |
| Torque | 300 Nm | 699 Nm |
| Torque RPM | 3500 RPM | 2250 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | 8-speed shiftable automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1630 kg | 2170 kg |
| Vehicle Length | 4570 mm | 4846 mm |
| Vehicle Width | 1790 mm | 1939 mm |
| Vehicle Height | 1680 mm | 1705 mm |
| Wheelbase Size | 2500 mm | 2896 mm |
| Fuel Tank Capacity | 55 L | 100 L |
