2004 BMW 520 vs. 2006 Porsche 911
To start off, 2006 Porsche 911 is newer by 2 year(s). Which means there will be less support and parts availability for 2004 BMW 520. In addition, the cost of maintenance, including insurance, on 2004 BMW 520 would be higher. At 3,824 cc (6 cylinders), 2006 Porsche 911 is equipped with a bigger engine. In terms of performance, 2006 Porsche 911 (350 HP @ 6600 RPM) has 182 more horse power than 2004 BMW 520. (168 HP @ 6000 RPM) In normal driving conditions, 2006 Porsche 911 should accelerate faster than 2004 BMW 520. With that said, vehicle weight also plays an important factor in acceleration. 2004 BMW 520 weights approximately 110 kg more than 2006 Porsche 911.
Because 2006 Porsche 911 is four wheel drive (4WD), it will have significant more traction and grip than 2004 BMW 520. In wet, icy, snow, or gravel driving conditions, 2006 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, 2006 Porsche 911 (400 Nm @ 4600 RPM) has 190 more torque (in Nm) than 2004 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 2004 BMW 520.
Compare all specifications:
| 2004 BMW 520 | 2006 Porsche 911 | |
| Make | BMW | Porsche |
| Model | 520 | 911 |
| Year Released | 2004 | 2006 |
| Body Type | Station Wagon | Convertible |
| Engine Position | Front | Rear |
| Engine Size | 2171 cc | 3824 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 168 HP | 350 HP |
| Engine RPM | 6000 RPM | 6600 RPM |
| Torque | 210 Nm | 400 Nm |
| Torque RPM | 3500 RPM | 4600 RPM |
| Engine Bore Size | 80.1 mm | 99 mm |
| Engine Stroke Size | 72 mm | 82.8 mm |
| Engine Compression Ratio | 10.0:1 | 11.8:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1670 kg | 1560 kg |
| Vehicle Length | 4810 mm | 4430 mm |
| Vehicle Width | 1810 mm | 1860 mm |
| Vehicle Height | 1450 mm | 1310 mm |
| Wheelbase Size | 2840 mm | 2360 mm |
| Fuel Tank Capacity | 70 L | 67 L |
