2006 BMW 630 vs. 2006 BMW 523
To start off, both 2006 BMW 630 and 2006 BMW 523 were released in the same year (2006). Therefore the support and the availability on parts for both vehicles should be relatively similar. 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 2006 BMW 523. (175 HP @ 5800 RPM). In normal driving conditions, 2006 BMW 630 should accelerate faster than 2006 BMW 523. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 523 weights approximately 75 kg more than 2006 BMW 630.
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 BMW 630 (300 Nm @ 2500 RPM) has 70 more torque (in Nm) than 2006 BMW 523. (230 Nm @ 3500 RPM). This means 2006 BMW 630 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW 523.
Compare all specifications:
| 2006 BMW 630 | 2006 BMW 523 | |
| Make | BMW | BMW |
| Model | 630 | 523 |
| Year Released | 2006 | 2006 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2996 cc | 2497 cc |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 254 HP | 175 HP |
| Engine RPM | 6600 RPM | 5800 RPM |
| Torque | 300 Nm | 230 Nm |
| Torque RPM | 2500 RPM | 3500 RPM |
| Engine Bore Size | 85 mm | 78.8 mm |
| Engine Stroke Size | 88 mm | 82 mm |
| Engine Compression Ratio | 10.7:1 | 11.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 250 km/hour | 230 km/hour |
| Acceleration 0-100mph | 7.2 seconds | 9 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1760 kg | 1835 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 | 10.6 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
