2003 Alpina Roadster vs. 2002 Audi S4
To start off, 2003 Alpina Roadster is newer by 1 year(s). Which means there will be less support and parts availability for 2002 Audi S4. In addition, the cost of maintenance, including insurance, on 2002 Audi S4 would be higher. At 4,163 cc (8 cylinders), 2002 Audi S4 is equipped with a bigger engine. In terms of performance, 2002 Audi S4 (339 HP @ 7000 RPM) has 38 more horse power than 2003 Alpina Roadster. (301 HP @ 6300 RPM) In normal driving conditions, 2002 Audi S4 should accelerate faster than 2003 Alpina Roadster. With that said, vehicle weight also plays an important factor in acceleration. 2002 Audi S4 weights approximately 36 kg more than 2003 Alpina Roadster. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2002 Audi S4 is four wheel drive (4WD), it will have significant more traction and grip than 2003 Alpina Roadster. In wet, icy, snow, or gravel driving conditions, 2002 Audi S4 will offer significantly more control. 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, 2002 Audi S4 (410 Nm @ 3500 RPM) has 48 more torque (in Nm) than 2003 Alpina Roadster. (362 Nm @ 4800 RPM). This means 2002 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2003 Alpina Roadster.
Compare all specifications:
| 2003 Alpina Roadster | 2002 Audi S4 | |
| Make | Alpina | Audi |
| Model | Roadster | S4 |
| Year Released | 2003 | 2002 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3346 cc | 4163 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 301 HP | 339 HP |
| Engine RPM | 6300 RPM | 7000 RPM |
| Torque | 362 Nm | 410 Nm |
| Torque RPM | 4800 RPM | 3500 RPM |
| Engine Bore Size | 87 mm | 84.5 mm |
| Engine Stroke Size | 93.8 mm | 92.8 mm |
| Engine Compression Ratio | 10.0:1 | 11.0:1 |
| Acceleration 0-100mph | 5.4 seconds | 5.6 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1626 kg | 1662 kg |
| Vehicle Length | 4100 mm | 4580 mm |
| Vehicle Width | 1790 mm | 1790 mm |
| Vehicle Height | 1310 mm | 1420 mm |
| Wheelbase Size | 2500 mm | 2660 mm |
| Fuel Tank Capacity | 55 L | 66 L |
