2007 BMW Z4 vs. 2005 Porsche Boxster
To start off, 2007 BMW Z4 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Porsche Boxster. In addition, the cost of maintenance, including insurance, on 2005 Porsche Boxster would be higher. At 2,688 cc (6 cylinders), 2005 Porsche Boxster is equipped with a bigger engine. In terms of performance, 2005 Porsche Boxster (240 HP @ 6600 RPM) has 25 more horse power than 2007 BMW Z4. (215 HP @ 6500 RPM) In normal driving conditions, 2005 Porsche Boxster should accelerate faster than 2007 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2005 Porsche Boxster weights approximately 5 kg more than 2007 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, 2005 Porsche Boxster (271 Nm) has 21 more torque (in Nm) than 2007 BMW Z4. (250 Nm). This means 2005 Porsche Boxster will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW Z4.
Compare all specifications:
| 2007 BMW Z4 | 2005 Porsche Boxster | |
| Make | BMW | Porsche |
| Model | Z4 | Boxster |
| Year Released | 2007 | 2005 |
| Body Type | Convertible | Convertible |
| Engine Position | Front | Middle |
| Engine Size | 2494 cc | 2688 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 215 HP | 240 HP |
| Engine RPM | 6500 RPM | 6600 RPM |
| Torque | 250 Nm | 271 Nm |
| Engine Bore Size | 82 mm | 86 mm |
| Engine Stroke Size | 78.8 mm | 78 mm |
| Drive Type | Rear | Rear |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1290 kg | 1295 kg |
| Vehicle Length | 4100 mm | 4330 mm |
| Vehicle Width | 1790 mm | 1810 mm |
| Vehicle Height | 1310 mm | 1300 mm |
| Wheelbase Size | 2500 mm | 2420 mm |
| Fuel Consumption Overall | 9.5 L/100km | 10.2 L/100km |
| Fuel Tank Capacity | 55 L | 53 L |
