2007 BMW Z4 vs. 2009 Porsche 911
To start off, 2009 Porsche 911 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 BMW Z4. In addition, the cost of maintenance, including insurance, on 2007 BMW Z4 would be higher. At 3,824 cc (6 cylinders), 2009 Porsche 911 is equipped with a bigger engine. In terms of performance, 2009 Porsche 911 (351 HP @ 6600 RPM) has 13 more horse power than 2007 BMW Z4. (338 HP @ 7900 RPM) In normal driving conditions, 2009 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 60 kg more than 2009 Porsche 911.
Because 2009 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, 2009 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, 2009 Porsche 911 (400 Nm @ 4600 RPM) has 35 more torque (in Nm) than 2007 BMW Z4. (365 Nm @ 4900 RPM). This means 2009 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 | 2009 Porsche 911 | |
| Make | BMW | Porsche |
| Model | Z4 | 911 |
| Year Released | 2007 | 2009 |
| Body Type | Convertible | Convertible |
| Engine Position | Front | Rear |
| Engine Size | 3246 cc | 3824 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 338 HP | 351 HP |
| Engine RPM | 7900 RPM | 6600 RPM |
| Torque | 365 Nm | 400 Nm |
| Torque RPM | 4900 RPM | 4600 RPM |
| Fuel Type | Gasoline | Gasoline |
| Top Speed | 250 km/hour | 288 km/hour |
| Acceleration 0-100mph | 5 seconds | 4.9 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1485 kg | 1425 kg |
| Vehicle Length | 4120 mm | 4430 mm |
| Vehicle Width | 1310 mm | 1310 mm |
| Vehicle Height | 1790 mm | 1860 mm |
| Wheelbase Size | 2500 mm | 2360 mm |
| Fuel Consumption Overall | 12.1 L/100km | 8.5 L/100km |
| Fuel Tank Capacity | 70 L | 67 L |
