2009 Alpina B5 vs. 2007 BMW 120
To start off, 2009 Alpina B5 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 BMW 120. In addition, the cost of maintenance, including insurance, on 2007 BMW 120 would be higher. 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 339 more horse power than 2007 BMW 120. (154 HP @ 4000 RPM). In normal driving conditions, 2009 Alpina B5 should accelerate faster than 2007 BMW 120. With that said, vehicle weight also plays an important factor in acceleration. 2009 Alpina B5 weights approximately 454 kg more than 2007 BMW 120. 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 370 more torque (in Nm) than 2007 BMW 120. (330 Nm @ 2000 RPM). This means 2009 Alpina B5 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW 120.
Compare all specifications:
| 2009 Alpina B5 | 2007 BMW 120 | |
| Make | Alpina | BMW |
| Model | B5 | 120 |
| Year Released | 2009 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 4397 cc | 1995 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 493 HP | 154 HP |
| Engine RPM | 5500 RPM | 4000 RPM |
| Torque | 700 Nm | 330 Nm |
| Torque RPM | 4250 RPM | 2000 RPM |
| Engine Bore Size | 92 mm | 84 mm |
| Engine Stroke Size | 82.7 mm | 90 mm |
| Engine Compression Ratio | 9.0:1 | 17.0:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 300 km/hour | 215 km/hour |
| Acceleration 0-100mph | 4.8 seconds | 10.2 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1810 kg | 1356 kg |
| Vehicle Length | 4850 mm | 4230 mm |
| Vehicle Width | 1850 mm | 1440 mm |
| Vehicle Height | 1500 mm | 1760 mm |
| Wheelbase Size | 2890 mm | 2670 mm |
| Fuel Consumption Overall | 12.4 L/100km | 9.4 L/100km |
| Fuel Tank Capacity | 70 L | 50 L |
