2009 BMW Z4 vs. 2008 Porsche Boxster
To start off, 2009 BMW Z4 is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Porsche Boxster. In addition, the cost of maintenance, including insurance, on 2008 Porsche Boxster would be higher. In terms of performance, 2008 Porsche Boxster (291 HP @ 6250 RPM) has 30 more horse power than 2009 BMW Z4. (261 HP @ 6600 RPM) In normal driving conditions, 2008 Porsche Boxster should accelerate faster than 2009 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW Z4 weights approximately 40 kg more than 2008 Porsche Boxster.
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, 2008 Porsche Boxster (340 Nm @ 4400 RPM) has 25 more torque (in Nm) than 2009 BMW Z4. (315 Nm @ 2750 RPM). This means 2008 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 | 2008 Porsche Boxster | |
| Make | BMW | Porsche |
| Model | Z4 | Boxster |
| Year Released | 2009 | 2008 |
| Body Type | Coupe | Convertible |
| Engine Position | Front | Middle |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 261 HP | 291 HP |
| Engine RPM | 6600 RPM | 6250 RPM |
| Torque | 315 Nm | 340 Nm |
| Torque RPM | 2750 RPM | 4400 RPM |
| Engine Bore Size | 85.1 mm | 96 mm |
| Engine Stroke Size | 88 mm | 78 mm |
| Engine Compression Ratio | 10.7:1 | 11.1:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Acceleration 0-100mph | 5.7 seconds | 5.7 seconds |
| Drive Type | Rear | Rear |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1395 kg | 1355 kg |
| Vehicle Length | 4100 mm | 4340 mm |
| Vehicle Width | 1790 mm | 1810 mm |
| Vehicle Height | 1270 mm | 1300 mm |
| Wheelbase Size | 2500 mm | 2420 mm |
| Fuel Consumption Overall | 8.9 L/100km | 10.6 L/100km |
| Fuel Tank Capacity | 55 L | 64 L |
