2008 Alpina B5 vs. 2003 BMW 645
To start off, 2008 Alpina B5 is newer by 5 year(s). Which means there will be less support and parts availability for 2003 BMW 645. In addition, the cost of maintenance, including insurance, on 2003 BMW 645 would be higher. At 4,398 cc (8 cylinders), 2003 BMW 645 is equipped with a bigger engine. In terms of performance, 2008 Alpina B5 (493 HP @ 5500 RPM) has 168 more horse power than 2003 BMW 645. (325 HP @ 6100 RPM). In normal driving conditions, 2008 Alpina B5 should accelerate faster than 2003 BMW 645. With that said, vehicle weight also plays an important factor in acceleration. 2008 Alpina B5 weights approximately 120 kg more than 2003 BMW 645. 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, 2008 Alpina B5 (700 Nm @ 4250 RPM) has 250 more torque (in Nm) than 2003 BMW 645. (450 Nm @ 3600 RPM). This means 2008 Alpina B5 will have an easier job in driving up hills or pulling heavy equipment than 2003 BMW 645. 2008 Alpina B5 has automatic transmission and 2003 BMW 645 has manual transmission. 2003 BMW 645 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 Alpina B5 will be easier to drive especially in heavy traffic.
Compare all specifications:
2008 Alpina B5 | 2003 BMW 645 | |
Make | Alpina | BMW |
Model | B5 | 645 |
Year Released | 2008 | 2003 |
Body Type | Station Wagon | Coupe |
Engine Position | Front | Front |
Engine Size | 4396 cc | 4398 cc |
Engine Cylinders | 8 cylinders | 8 cylinders |
Engine Type | V | V |
Valves per Cylinder | 4 valves | 4 valves |
Horse Power | 493 HP | 325 HP |
Engine RPM | 5500 RPM | 6100 RPM |
Torque | 700 Nm | 450 Nm |
Torque RPM | 4250 RPM | 3600 RPM |
Engine Bore Size | 92 mm | 92 mm |
Engine Stroke Size | 82.7 mm | 82.7 mm |
Engine Compression Ratio | 9.0:1 | 10.5:1 |
Top Speed | 300 km/hour | 250 km/hour |
Acceleration 0-100mph | 4.8 seconds | 5.9 seconds |
Drive Type | Rear | Rear |
Transmission Type | Automatic | Manual |
Number of Seats | 5 seats | 4 seats |
Number of Doors | 5 doors | 2 doors |
Vehicle Weight | 1810 kg | 1690 kg |
Vehicle Length | 4850 mm | 4830 mm |
Vehicle Width | 1850 mm | 1860 mm |
Vehicle Height | 1500 mm | 1380 mm |
Wheelbase Size | 2890 mm | 2890 mm |
Fuel Consumption Overall | 12.4 L/100km | 11.7 L/100km |
Fuel Tank Capacity | 70 L | 70 L |