2008 BMW Z4 vs. 2004 Porsche 911
To start off, 2008 BMW Z4 is newer by 4 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 (315 HP @ 6800 RPM) has 100 more horse power than 2008 BMW Z4. (215 HP @ 6250 RPM) In normal driving conditions, 2004 Porsche 911 should accelerate faster than 2008 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2004 Porsche 911 weights approximately 30 kg more than 2008 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 2008 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 (370 Nm) has 119 more torque (in Nm) than 2008 BMW Z4. (251 Nm). This means 2004 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 2008 BMW Z4.
Compare all specifications:
| 2008 BMW Z4 | 2004 Porsche 911 | |
| Make | BMW | Porsche |
| Model | Z4 | 911 |
| Year Released | 2008 | 2004 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 2994 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 | 315 HP |
| Engine RPM | 6250 RPM | 6800 RPM |
| Torque | 251 Nm | 370 Nm |
| Engine Compression Ratio | 10.7:1 | 11.3:1 |
| Drive Type | Rear | 4WD |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1395 kg | 1425 kg |
| Vehicle Length | 4100 mm | 4440 mm |
| Vehicle Width | 1790 mm | 1840 mm |
| Vehicle Height | 1300 mm | 1300 mm |
| Wheelbase Size | 2500 mm | 2360 mm |
| Fuel Consumption | 8.4 L/100km | 9.8 L/100km |
| Fuel Consumption City | 13.1 L/100km | 13.8 L/100km |
| Fuel Consumption Overall | 11.2 L/100km | 12.4 L/100km |
| Fuel Tank Capacity | 55 L | 64 L |
