2007 BMW Z4 vs. 1998 Porsche 911
To start off, 2007 BMW Z4 is newer by 9 year(s). Which means there will be less support and parts availability for 1998 Porsche 911. In addition, the cost of maintenance, including insurance, on 1998 Porsche 911 would be higher. At 3,387 cc (6 cylinders), 1998 Porsche 911 is equipped with a bigger engine. In terms of performance, 1998 Porsche 911 (296 HP @ 6800 RPM) has 148 more horse power than 2007 BMW Z4. (148 HP @ 6200 RPM) In normal driving conditions, 1998 Porsche 911 should accelerate faster than 2007 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 1998 Porsche 911 weights approximately 85 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 1998 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, 1998 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, 1998 Porsche 911 (350 Nm @ 4600 RPM) has 150 more torque (in Nm) than 2007 BMW Z4. (200 Nm @ 3600 RPM). This means 1998 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 | 1998 Porsche 911 | |
| Make | BMW | Porsche |
| Model | Z4 | 911 |
| Year Released | 2007 | 1998 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 1993 cc | 3387 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 148 HP | 296 HP |
| Engine RPM | 6200 RPM | 6800 RPM |
| Torque | 200 Nm | 350 Nm |
| Torque RPM | 3600 RPM | 4600 RPM |
| Engine Bore Size | 84 mm | 96 mm |
| Engine Stroke Size | 90 mm | 78 mm |
| Engine Compression Ratio | 10.5:1 | 11.3:1 |
| Top Speed | 220 km/hour | 280 km/hour |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1295 kg | 1380 kg |
| Vehicle Length | 4100 mm | 4440 mm |
| Vehicle Width | 1310 mm | 1770 mm |
| Vehicle Height | 1790 mm | 1310 mm |
| Wheelbase Size | 2500 mm | 2360 mm |
| Fuel Tank Capacity | 55 L | 63 L |
