2003 BMW 520 vs. 2006 Porsche 911
To start off, 2006 Porsche 911 is newer by 3 year(s). Which means there will be less support and parts availability for 2003 BMW 520. In addition, the cost of maintenance, including insurance, on 2003 BMW 520 would be higher. At 3,589 cc (6 cylinders), 2006 Porsche 911 is equipped with a bigger engine. In terms of performance, 2006 Porsche 911 (326 HP @ 6800 RPM) has 159 more horse power than 2003 BMW 520. (167 HP @ 5800 RPM) In normal driving conditions, 2006 Porsche 911 should accelerate faster than 2003 BMW 520. With that said, vehicle weight also plays an important factor in acceleration. 2006 Porsche 911 weights approximately 175 kg more than 2003 BMW 520. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2006 Porsche 911 (370 Nm @ 4250 RPM) has 160 more torque (in Nm) than 2003 BMW 520. (210 Nm @ 3500 RPM). This means 2006 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 | 2006 Porsche 911 | |
| Make | BMW | Porsche |
| Model | 520 | 911 |
| Year Released | 2003 | 2006 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Rear |
| Engine Size | 2171 cc | 3589 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 167 HP | 326 HP |
| Engine RPM | 5800 RPM | 6800 RPM |
| Torque | 210 Nm | 370 Nm |
| Torque RPM | 3500 RPM | 4250 RPM |
| Engine Bore Size | 80 mm | 96 mm |
| Engine Stroke Size | 72 mm | 83 mm |
| Engine Compression Ratio | 10.8:1 | 11.3:1 |
| Top Speed | 230 km/hour | 285 km/hour |
| Acceleration 0-100mph | 9.3 seconds | 5.2 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1560 kg | 1735 kg |
| Vehicle Length | 4850 mm | 4430 mm |
| Vehicle Width | 1850 mm | 1860 mm |
| Vehicle Height | 1470 mm | 1320 mm |
| Wheelbase Size | 3000 mm | 2360 mm |
| Fuel Consumption | 6.8 L/100km | 9.1 L/100km |
| Fuel Consumption City | 13 L/100km | 13.1 L/100km |
| Fuel Consumption Overall | 9 L/100km | 11.2 L/100km |
| Fuel Tank Capacity | 70 L | 67 L |
