2003 Alpina B3 vs. 2005 BMW 745
To start off, 2005 BMW 745 is newer by 2 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 4,398 cc (8 cylinders), 2005 BMW 745 is equipped with a bigger engine. In terms of performance, 2005 BMW 745 (325 HP @ 6000 RPM) has 48 more horse power than 2003 Alpina B3. (277 HP @ 6300 RPM) In normal driving conditions, 2005 BMW 745 should accelerate faster than 2003 Alpina B3. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW 745 weights approximately 450 kg more than 2003 Alpina B3. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 Alpina B3 is four wheel drive (4WD), it will have significant more traction and grip than 2005 BMW 745. 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, 2005 BMW 745 (450 Nm @ 3600 RPM) has 115 more torque (in Nm) than 2003 Alpina B3. (335 Nm @ 4500 RPM). This means 2005 BMW 745 will have an easier job in driving up hills or pulling heavy equipment than 2003 Alpina B3.
Compare all specifications:
| 2003 Alpina B3 | 2005 BMW 745 | |
| Make | Alpina | BMW |
| Model | B3 | 745 |
| Year Released | 2003 | 2005 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3301 cc | 4398 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 277 HP | 325 HP |
| Engine RPM | 6300 RPM | 6000 RPM |
| Torque | 335 Nm | 450 Nm |
| Torque RPM | 4500 RPM | 3600 RPM |
| Engine Bore Size | 86.4 mm | 92.1 mm |
| Engine Stroke Size | 93.9 mm | 82.7 mm |
| Engine Compression Ratio | 10.0:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Acceleration 0-100mph | 7.2 seconds | 6.6 seconds |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1560 kg | 2010 kg |
| Fuel Consumption Overall | 11.7 L/100km | 11.2 L/100km |
| Fuel Tank Capacity | 63 L | 88 L |
