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 3,596 cc (6 cylinders), 2004 Porsche 911 is equipped with a bigger engine. In terms of performance, 2004 Porsche 911 (315 HP @ 6000 RPM) has 100 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. 2007 BMW Z4 weights approximately 20 kg more than 2004 Porsche 911.
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, 2004 Porsche 911 (370 Nm) has 120 more torque (in Nm) than 2007 BMW Z4. (250 Nm). 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 | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 2497 cc | 3596 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 215 HP | 315 HP |
| Engine RPM | 6500 RPM | 6000 RPM |
| Torque | 250 Nm | 370 Nm |
| Engine Bore Size | 82 mm | 96 mm |
| Engine Stroke Size | 78.8 mm | 83 mm |
| Engine Compression Ratio | 11.0:1 | 11.3:1 |
| Drive Type | Rear | Rear |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1362 kg | 1342 kg |
| Vehicle Length | 4100 mm | 4440 mm |
| Vehicle Width | 1310 mm | 1780 mm |
| Vehicle Height | 1790 mm | 1310 mm |
| Wheelbase Size | 2500 mm | 2360 mm |
| Fuel Consumption Overall | 8.4 L/100km | 11.4 L/100km |
| Fuel Tank Capacity | 55 L | 64 L |
