2009 Alpina B3 vs. 2008 BMW 630
To start off, 2009 Alpina B3 is newer by 1 year(s). Which means there will be less support and parts availability for 2008 BMW 630. In addition, the cost of maintenance, including insurance, on 2008 BMW 630 would be higher. At 3,346 cc (6 cylinders), 2009 Alpina B3 is equipped with a bigger engine. In terms of performance, 2009 Alpina B3 (301 HP @ 6300 RPM) has 46 more horse power than 2008 BMW 630. (255 HP @ 6600 RPM). In normal driving conditions, 2009 Alpina B3 should accelerate faster than 2008 BMW 630. With that said, vehicle weight also plays an important factor in acceleration. 2008 BMW 630 weights approximately 140 kg more than 2009 Alpina B3.
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 Alpina B3 (362 Nm @ 4800 RPM) has 62 more torque (in Nm) than 2008 BMW 630. (300 Nm @ 2500 RPM). This means 2009 Alpina B3 will have an easier job in driving up hills or pulling heavy equipment than 2008 BMW 630.
Compare all specifications:
| 2009 Alpina B3 | 2008 BMW 630 | |
| Make | Alpina | BMW |
| Model | B3 | 630 |
| Year Released | 2009 | 2008 |
| Body Type | Convertible | Convertible |
| Engine Position | Front | Front |
| Engine Size | 3346 cc | 2996 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 301 HP | 255 HP |
| Engine RPM | 6300 RPM | 6600 RPM |
| Torque | 362 Nm | 300 Nm |
| Torque RPM | 4800 RPM | 2500 RPM |
| Engine Bore Size | 87 mm | 85 mm |
| Engine Stroke Size | 93.8 mm | 88 mm |
| Engine Compression Ratio | 10.2:1 | 10.7:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 264 km/hour | 250 km/hour |
| Acceleration 0-100mph | 6.1 seconds | 6.9 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1620 kg | 1760 kg |
| Vehicle Length | 4490 mm | 4830 mm |
| Vehicle Width | 1760 mm | 1860 mm |
| Vehicle Height | 1360 mm | 1380 mm |
| Wheelbase Size | 2730 mm | 2790 mm |
| Fuel Consumption Overall | 11.2 L/100km | 9.6 L/100km |
| Fuel Tank Capacity | 63 L | 70 L |
