2003 Alpina Roadster vs. 2008 BMW 320
To start off, 2008 BMW 320 is newer by 5 year(s). Which means there will be less support and parts availability for 2003 Alpina Roadster. In addition, the cost of maintenance, including insurance, on 2003 Alpina Roadster would be higher. At 3,346 cc (6 cylinders), 2003 Alpina Roadster is equipped with a bigger engine. In terms of performance, 2003 Alpina Roadster (301 HP @ 6300 RPM) has 140 more horse power than 2008 BMW 320. (161 HP @ 4000 RPM). In normal driving conditions, 2003 Alpina Roadster should accelerate faster than 2008 BMW 320. With that said, vehicle weight also plays an important factor in acceleration. 2003 Alpina Roadster weights approximately 196 kg more than 2008 BMW 320. 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, 2003 Alpina Roadster (362 Nm @ 4800 RPM) has 32 more torque (in Nm) than 2008 BMW 320. (330 Nm @ 2000 RPM). This means 2003 Alpina Roadster will have an easier job in driving up hills or pulling heavy equipment than 2008 BMW 320.
Compare all specifications:
| 2003 Alpina Roadster | 2008 BMW 320 | |
| Make | Alpina | BMW |
| Model | Roadster | 320 |
| Year Released | 2003 | 2008 |
| Body Type | Convertible | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 3346 cc | 1995 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 301 HP | 161 HP |
| Engine RPM | 6300 RPM | 4000 RPM |
| Torque | 362 Nm | 330 Nm |
| Torque RPM | 4800 RPM | 2000 RPM |
| Engine Bore Size | 87 mm | 84.1 mm |
| Engine Stroke Size | 93.8 mm | 90 mm |
| Engine Compression Ratio | 10.0:1 | 17.0:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Acceleration 0-100mph | 5.4 seconds | 8.3 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1626 kg | 1430 kg |
| Vehicle Length | 4100 mm | 4530 mm |
| Vehicle Width | 1790 mm | 1420 mm |
| Vehicle Height | 1310 mm | 1820 mm |
| Wheelbase Size | 2500 mm | 2770 mm |
| Fuel Consumption Overall | 11.7 L/100km | 6.5 L/100km |
| Fuel Tank Capacity | 55 L | 63 L |
