2009 Alpina Roadster vs. 2009 BMW 125
To start off, both 2009 Alpina Roadster 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 3,346 cc (6 cylinders), 2009 Alpina Roadster is equipped with a bigger engine. In terms of performance, 2009 Alpina Roadster (296 HP @ 6300 RPM) has 81 more horse power than 2009 BMW 125. (215 HP @ 6500 RPM). In normal driving conditions, 2009 Alpina Roadster should accelerate faster than 2009 BMW 125. With that said, vehicle weight also plays an important factor in acceleration. 2009 Alpina Roadster weights approximately 69 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 Roadster (362 Nm @ 4800 RPM) has 112 more torque (in Nm) than 2009 BMW 125. (250 Nm @ 2750 RPM). This means 2009 Alpina Roadster will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW 125.
Compare all specifications:
| 2009 Alpina Roadster | 2009 BMW 125 | |
| Make | Alpina | BMW |
| Model | Roadster | 125 |
| Year Released | 2009 | 2009 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Front |
| Engine Size | 3346 cc | 2497 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 296 HP | 215 HP |
| Engine RPM | 6300 RPM | 6500 RPM |
| Torque | 362 Nm | 250 Nm |
| Torque RPM | 4800 RPM | 2750 RPM |
| Engine Compression Ratio | 10.2:1 | 10.2:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 265 km/hour | 245 km/hour |
| Acceleration 0-100mph | 5.3 seconds | 6.4 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 3 doors |
| Vehicle Weight | 1395 kg | 1326 kg |
| Vehicle Length | 4100 mm | 4370 mm |
| Vehicle Width | 1790 mm | 1430 mm |
| Vehicle Height | 1300 mm | 1760 mm |
| Wheelbase Size | 2500 mm | 2670 mm |
| Fuel Consumption Overall | 10 L/100km | 5.1 L/100km |
| Fuel Tank Capacity | 55 L | 53 L |
