2006 Alpina Roadster vs. 2011 BMW 325
To start off, 2011 BMW 325 is newer by 5 year(s). Which means there will be less support and parts availability for 2006 Alpina Roadster. In addition, the cost of maintenance, including insurance, on 2006 Alpina Roadster would be higher. At 3,346 cc (6 cylinders), 2006 Alpina Roadster is equipped with a bigger engine. In terms of performance, 2006 Alpina Roadster (296 HP @ 6300 RPM) has 81 more horse power than 2011 BMW 325. (215 HP @ 6500 RPM). In normal driving conditions, 2006 Alpina Roadster should accelerate faster than 2011 BMW 325. With that said, vehicle weight also plays an important factor in acceleration. 2011 BMW 325 weights approximately 130 kg more than 2006 Alpina Roadster.
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, 2006 Alpina Roadster (362 Nm @ 4800 RPM) has 112 more torque (in Nm) than 2011 BMW 325. (250 Nm @ 2750 RPM). This means 2006 Alpina Roadster will have an easier job in driving up hills or pulling heavy equipment than 2011 BMW 325.
Compare all specifications:
| 2006 Alpina Roadster | 2011 BMW 325 | |
| Make | Alpina | BMW |
| Model | Roadster | 325 |
| Year Released | 2006 | 2011 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3346 cc | 2494 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 Bore Size | 87 mm | 78.8 mm |
| Engine Stroke Size | 93.8 mm | 82 mm |
| Engine Compression Ratio | 10.0:1 | 11.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 265 km/hour | 245 km/hour |
| Acceleration 0-100mph | 5.7 seconds | 7 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1395 kg | 1525 kg |
| Vehicle Length | 4100 mm | 4530 mm |
| Vehicle Width | 1790 mm | 1820 mm |
| Vehicle Height | 1310 mm | 1430 mm |
| Wheelbase Size | 2500 mm | 2770 mm |
| Fuel Consumption Overall | 11.7 L/100km | 8.4 L/100km |
| Fuel Tank Capacity | 55 L | 63 L |
