2011 Alpina B5 vs. 2009 BMW 545
To start off, 2011 Alpina B5 is newer by 2 year(s). Which means there will be less support and parts availability for 2009 BMW 545. In addition, the cost of maintenance, including insurance, on 2009 BMW 545 would be higher. Both 2011 Alpina B5 and 2009 BMW 545 are equipped with a 4,398 cc engine. In terms of performance, 2011 Alpina B5 (493 HP @ 5500 RPM) has 165 more horse power than 2009 BMW 545. (328 HP @ 6100 RPM). In normal driving conditions, 2011 Alpina B5 should accelerate faster than 2009 BMW 545. With that said, vehicle weight also plays an important factor in acceleration. 2011 Alpina B5 weights approximately 15 kg more than 2009 BMW 545. 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, 2011 Alpina B5 (700 Nm @ 4250 RPM) has 250 more torque (in Nm) than 2009 BMW 545. (450 Nm @ 3600 RPM). This means 2011 Alpina B5 will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW 545.
Compare all specifications:
| 2011 Alpina B5 | 2009 BMW 545 | |
| Make | Alpina | BMW |
| Model | B5 | 545 |
| Year Released | 2011 | 2009 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 4398 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 493 HP | 328 HP |
| Engine RPM | 5500 RPM | 6100 RPM |
| Torque | 700 Nm | 450 Nm |
| Torque RPM | 4250 RPM | 3600 RPM |
| Engine Compression Ratio | 9.0:1 | 10.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 309 km/hour | 250 km/hour |
| Acceleration 0-100mph | 4.7 seconds | 6.1 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1720 kg | 1705 kg |
| Vehicle Length | 4850 mm | 4850 mm |
| Vehicle Width | 1850 mm | 1850 mm |
| Vehicle Height | 1470 mm | 1470 mm |
| Wheelbase Size | 2890 mm | 2890 mm |
| Fuel Consumption Overall | 12.3 L/100km | 11 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
