2003 BMW 520 vs. 1999 Porsche 911
To start off, 2003 BMW 520 is newer by 4 year(s). Which means there will be less support and parts availability for 1999 Porsche 911. In addition, the cost of maintenance, including insurance, on 1999 Porsche 911 would be higher. At 3,595 cc (6 cylinders), 1999 Porsche 911 is equipped with a bigger engine. In terms of performance, 1999 Porsche 911 (414 HP @ 6000 RPM) has 247 more horse power than 2003 BMW 520. (167 HP @ 6100 RPM) In normal driving conditions, 1999 Porsche 911 should accelerate faster than 2003 BMW 520. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW 520 weights approximately 130 kg more than 1999 Porsche 911.
Because 1999 Porsche 911 is four wheel drive (4WD), it will have significant more traction and grip than 2003 BMW 520. In wet, icy, snow, or gravel driving conditions, 1999 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, 1999 Porsche 911 (560 Nm @ 2700 RPM) has 350 more torque (in Nm) than 2003 BMW 520. (210 Nm @ 3500 RPM). This means 1999 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 2003 BMW 520.
Compare all specifications:
| 2003 BMW 520 | 1999 Porsche 911 | |
| Make | BMW | Porsche |
| Model | 520 | 911 |
| Year Released | 2003 | 1999 |
| Body Type | Station Wagon | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 2170 cc | 3595 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 167 HP | 414 HP |
| Engine RPM | 6100 RPM | 6000 RPM |
| Torque | 210 Nm | 560 Nm |
| Torque RPM | 3500 RPM | 2700 RPM |
| Engine Bore Size | 80 mm | 100 mm |
| Engine Stroke Size | 72 mm | 76.4 mm |
| Engine Compression Ratio | 10.7:1 | 9.4:1 |
| Top Speed | 223 km/hour | 304 km/hour |
| Acceleration 0-100mph | 9.5 seconds | 4.2 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1670 kg | 1540 kg |
| Vehicle Length | 4810 mm | 4440 mm |
| Vehicle Width | 1810 mm | 1840 mm |
| Vehicle Height | 1450 mm | 1300 mm |
| Wheelbase Size | 2890 mm | 2360 mm |
| Fuel Tank Capacity | 70 L | 64 L |
