2003 Alpina B3 vs. 2006 BMW 630
To start off, 2006 BMW 630 is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Alpina B3. In addition, the cost of maintenance, including insurance, on 2003 Alpina B3 would be higher. At 3,300 cc (6 cylinders), 2003 Alpina B3 is equipped with a bigger engine. In terms of performance, 2003 Alpina B3 (276 HP @ 6300 RPM) has 22 more horse power than 2006 BMW 630. (254 HP @ 6600 RPM). In normal driving conditions, 2003 Alpina B3 should accelerate faster than 2006 BMW 630. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 630 weights approximately 200 kg more than 2003 Alpina B3.
Because 2003 Alpina B3 is four wheel drive (4WD), it will have significant more traction and grip than 2006 BMW 630. In wet, icy, snow, or gravel driving conditions, 2003 Alpina B3 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, 2003 Alpina B3 (335 Nm @ 4500 RPM) has 35 more torque (in Nm) than 2006 BMW 630. (300 Nm @ 2500 RPM). This means 2003 Alpina B3 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW 630.
Compare all specifications:
| 2003 Alpina B3 | 2006 BMW 630 | |
| Make | Alpina | BMW |
| Model | B3 | 630 |
| Year Released | 2003 | 2006 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 3300 cc | 2996 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 276 HP | 254 HP |
| Engine RPM | 6300 RPM | 6600 RPM |
| Torque | 335 Nm | 300 Nm |
| Torque RPM | 4500 RPM | 2500 RPM |
| Engine Compression Ratio | 10.0:1 | 10.7:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 254 km/hour | 250 km/hour |
| Acceleration 0-100mph | 7.2 seconds | 7.2 seconds |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1560 kg | 1760 kg |
| Vehicle Length | 4480 mm | 4830 mm |
| Vehicle Width | 1750 mm | 1860 mm |
| Vehicle Height | 1420 mm | 1380 mm |
| Wheelbase Size | 2730 mm | 2790 mm |
| Fuel Consumption Overall | 11.6 L/100km | 9.6 L/100km |
| Fuel Tank Capacity | 63 L | 70 L |
