2003 Alpina Roadster vs. 2002 Opel Astra
To start off, 2003 Alpina Roadster is newer by 1 year(s). Which means there will be less support and parts availability for 2002 Opel Astra. In addition, the cost of maintenance, including insurance, on 2002 Opel Astra 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 104 more horse power than 2002 Opel Astra. (197 HP @ 5600 RPM). In normal driving conditions, 2003 Alpina Roadster should accelerate faster than 2002 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2003 Alpina Roadster weights approximately 376 kg more than 2002 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 Alpina Roadster is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2003 Alpina Roadster. However, in wet, icy, snow, or gravel driving conditions, 2002 Opel Astra, being front wheel drive (FWD), will offer much better control with better grip. 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 112 more torque (in Nm) than 2002 Opel Astra. (250 Nm @ 1950 RPM). This means 2003 Alpina Roadster will have an easier job in driving up hills or pulling heavy equipment than 2002 Opel Astra.
Compare all specifications:
| 2003 Alpina Roadster | 2002 Opel Astra | |
| Make | Alpina | Opel |
| Model | Roadster | Astra |
| Year Released | 2003 | 2002 |
| Body Type | Convertible | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 3346 cc | 1978 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 301 HP | 197 HP |
| Engine RPM | 6300 RPM | 5600 RPM |
| Torque | 362 Nm | 250 Nm |
| Torque RPM | 4800 RPM | 1950 RPM |
| Engine Bore Size | 87 mm | 86 mm |
| Engine Stroke Size | 93.8 mm | 86 mm |
| Acceleration 0-100mph | 5.4 seconds | 7.5 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 3 doors |
| Vehicle Weight | 1626 kg | 1250 kg |
| Vehicle Length | 4100 mm | 4120 mm |
| Vehicle Width | 1790 mm | 1720 mm |
| Vehicle Height | 1310 mm | 1430 mm |
| Wheelbase Size | 2500 mm | 2640 mm |
| Fuel Tank Capacity | 55 L | 52 L |
