2009 BMW Z4 vs. 2006 Porsche Boxster
To start off, 2009 BMW Z4 is newer by 3 year(s). Which means there will be less support and parts availability for 2006 Porsche Boxster. In addition, the cost of maintenance, including insurance, on 2006 Porsche Boxster would be higher. At 3,177 cc (6 cylinders), 2006 Porsche Boxster is equipped with a bigger engine. In terms of performance, 2006 Porsche Boxster (280 HP @ 6200 RPM) has 132 more horse power than 2009 BMW Z4. (148 HP @ 6200 RPM) In normal driving conditions, 2006 Porsche Boxster should accelerate faster than 2009 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2006 Porsche Boxster weights approximately 50 kg more than 2009 BMW Z4. 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, 2006 Porsche Boxster (320 Nm @ 4700 RPM) has 120 more torque (in Nm) than 2009 BMW Z4. (200 Nm @ 3600 RPM). This means 2006 Porsche Boxster will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW Z4.
Compare all specifications:
| 2009 BMW Z4 | 2006 Porsche Boxster | |
| Make | BMW | Porsche |
| Model | Z4 | Boxster |
| Year Released | 2009 | 2006 |
| Body Type | Convertible | Convertible |
| Engine Position | Front | Middle |
| Engine Size | 1995 cc | 3177 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 148 HP | 280 HP |
| Engine RPM | 6200 RPM | 6200 RPM |
| Torque | 200 Nm | 320 Nm |
| Torque RPM | 3600 RPM | 4700 RPM |
| Engine Compression Ratio | 10.5:1 | 11.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 215 km/hour | 268 km/hour |
| Acceleration 0-100mph | 8.2 seconds | 5.5 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1295 kg | 1345 kg |
| Vehicle Length | 4100 mm | 4370 mm |
| Vehicle Width | 1310 mm | 1810 mm |
| Vehicle Height | 1790 mm | 1300 mm |
| Wheelbase Size | 2500 mm | 2420 mm |
| Fuel Consumption Overall | 7.5 L/100km | 11.2 L/100km |
| Fuel Tank Capacity | 55 L | 64 L |
