2007 BMW Z4 vs. 2004 Porsche 911
To start off, 2007 BMW Z4 is newer by 3 year(s). Which means there will be less support and parts availability for 2004 Porsche 911. In addition, the cost of maintenance, including insurance, on 2004 Porsche 911 would be higher. At 3,589 cc (6 cylinders), 2004 Porsche 911 is equipped with a bigger engine. In terms of performance, 2004 Porsche 911 (415 HP @ 6000 RPM) has 200 more horse power than 2007 BMW Z4. (215 HP @ 6500 RPM) In normal driving conditions, 2004 Porsche 911 should accelerate faster than 2007 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2004 Porsche 911 weights approximately 373 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.
Because 2004 Porsche 911 is four wheel drive (4WD), it will have significant more traction and grip than 2007 BMW Z4. In wet, icy, snow, or gravel driving conditions, 2004 Porsche 911 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, 2004 Porsche 911 (563 Nm @ 2700 RPM) has 313 more torque (in Nm) than 2007 BMW Z4. (250 Nm @ 2750 RPM). This means 2004 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW Z4.
Compare all specifications:
| 2007 BMW Z4 | 2004 Porsche 911 | |
| Make | BMW | Porsche |
| Model | Z4 | 911 |
| Year Released | 2007 | 2004 |
| Body Type | Convertible | Convertible |
| Engine Position | Front | Rear |
| Engine Size | 2497 cc | 3589 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 215 HP | 415 HP |
| Engine RPM | 6500 RPM | 6000 RPM |
| Torque | 250 Nm | 563 Nm |
| Torque RPM | 2750 RPM | 2700 RPM |
| Engine Bore Size | 82 mm | 100 mm |
| Engine Stroke Size | 78.8 mm | 76 mm |
| Engine Compression Ratio | 11.0:1 | 9.4:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 240 km/hour | 305 km/hour |
| Acceleration 0-100mph | 6.5 seconds | 4.6 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1362 kg | 1735 kg |
| Vehicle Length | 4100 mm | 4440 mm |
| Vehicle Width | 1310 mm | 1840 mm |
| Vehicle Height | 1790 mm | 1300 mm |
| Wheelbase Size | 2500 mm | 2360 mm |
| Fuel Consumption Overall | 8.4 L/100km | 12.8 L/100km |
| Fuel Tank Capacity | 55 L | 64 L |
