2009 Alpina B5 vs. 2009 BMW 125
To start off, both 2009 Alpina B5 and 2009 BMW 125 were released in the same year (2009). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 4,397 cc (8 cylinders), 2009 Alpina B5 is equipped with a bigger engine. In terms of performance, 2009 Alpina B5 (493 HP @ 5500 RPM) has 278 more horse power than 2009 BMW 125. (215 HP @ 6700 RPM). In normal driving conditions, 2009 Alpina B5 should accelerate faster than 2009 BMW 125. With that said, vehicle weight also plays an important factor in acceleration. 2009 Alpina B5 weights approximately 285 kg more than 2009 BMW 125. 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, 2009 Alpina B5 (700 Nm @ 4250 RPM) has 430 more torque (in Nm) than 2009 BMW 125. (270 Nm @ 2500 RPM). This means 2009 Alpina B5 will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW 125.
Compare all specifications:
| 2009 Alpina B5 | 2009 BMW 125 | |
| Make | Alpina | BMW |
| Model | B5 | 125 |
| Year Released | 2009 | 2009 |
| Body Type | Station Wagon | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4397 cc | 2996 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 493 HP | 215 HP |
| Engine RPM | 5500 RPM | 6700 RPM |
| Torque | 700 Nm | 270 Nm |
| Torque RPM | 4250 RPM | 2500 RPM |
| Engine Compression Ratio | 9.0:1 | 10.7:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 300 km/hour | 231 km/hour |
| Acceleration 0-100mph | 4.8 seconds | 7.4 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1810 kg | 1525 kg |
| Vehicle Length | 4850 mm | 4370 mm |
| Vehicle Width | 1850 mm | 1420 mm |
| Vehicle Height | 1500 mm | 1760 mm |
| Wheelbase Size | 2890 mm | 2670 mm |
| Fuel Consumption Overall | 12.4 L/100km | 8.1 L/100km |
| Fuel Tank Capacity | 70 L | 53 L |
