2006 BMW 630 vs. 2009 BMW 520
To start off, 2009 BMW 520 is newer by 3 year(s). Which means there will be less support and parts availability for 2006 BMW 630. In addition, the cost of maintenance, including insurance, on 2006 BMW 630 would be higher. At 2,996 cc (6 cylinders), 2006 BMW 630 is equipped with a bigger engine. In terms of performance, 2006 BMW 630 (254 HP @ 6600 RPM) has 79 more horse power than 2009 BMW 520. (175 HP @ 4000 RPM). In normal driving conditions, 2006 BMW 630 should accelerate faster than 2009 BMW 520. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 630 weights approximately 175 kg more than 2009 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, 2009 BMW 520 (350 Nm @ 1750 RPM) has 50 more torque (in Nm) than 2006 BMW 630. (300 Nm @ 2500 RPM). This means 2009 BMW 520 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW 630. 2009 BMW 520 has automatic transmission and 2006 BMW 630 has manual transmission. 2006 BMW 630 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 BMW 520 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 BMW 630 | 2009 BMW 520 | |
| Make | BMW | BMW |
| Model | 630 | 520 |
| Year Released | 2006 | 2009 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2996 cc | 1995 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 254 HP | 175 HP |
| Engine RPM | 6600 RPM | 4000 RPM |
| Torque | 300 Nm | 350 Nm |
| Torque RPM | 2500 RPM | 1750 RPM |
| Engine Compression Ratio | 10.7:1 | 16.0:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 250 km/hour | 218 km/hour |
| Acceleration 0-100mph | 7.2 seconds | 8.3 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1760 kg | 1585 kg |
| Vehicle Length | 4830 mm | 4850 mm |
| Vehicle Width | 1860 mm | 1850 mm |
| Vehicle Height | 1380 mm | 1470 mm |
| Wheelbase Size | 2790 mm | 2890 mm |
| Fuel Consumption Overall | 9.6 L/100km | 5.1 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
