2005 Alpina Roadster vs. 2006 Audi A4
To start off, 2006 Audi A4 is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Alpina Roadster. In addition, the cost of maintenance, including insurance, on 2005 Alpina Roadster would be higher. At 3,346 cc (6 cylinders), 2005 Alpina Roadster is equipped with a bigger engine. In terms of performance, 2005 Alpina Roadster (301 HP @ 6300 RPM) has 49 more horse power than 2006 Audi A4. (252 HP @ 6500 RPM). In normal driving conditions, 2005 Alpina Roadster should accelerate faster than 2006 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2005 Alpina Roadster weights approximately 30 kg more than 2006 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Alpina Roadster. In wet, icy, snow, or gravel driving conditions, 2006 Audi A4 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, 2005 Alpina Roadster (362 Nm @ 4800 RPM) has 32 more torque (in Nm) than 2006 Audi A4. (330 Nm @ 3250 RPM). This means 2005 Alpina Roadster will have an easier job in driving up hills or pulling heavy equipment than 2006 Audi A4.
Compare all specifications:
| 2005 Alpina Roadster | 2006 Audi A4 | |
| Make | Alpina | Audi |
| Model | Roadster | A4 |
| Year Released | 2005 | 2006 |
| Body Type | Convertible | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 3346 cc | 3123 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 301 HP | 252 HP |
| Engine RPM | 6300 RPM | 6500 RPM |
| Torque | 362 Nm | 330 Nm |
| Torque RPM | 4800 RPM | 3250 RPM |
| Engine Bore Size | 87 mm | 84.5 mm |
| Engine Stroke Size | 93.8 mm | 92.8 mm |
| Engine Compression Ratio | 10.0:1 | 12.5:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1626 kg | 1596 kg |
| Vehicle Length | 4100 mm | 4590 mm |
| Vehicle Width | 1790 mm | 1780 mm |
| Vehicle Height | 1300 mm | 1430 mm |
| Wheelbase Size | 2500 mm | 2650 mm |
| Fuel Consumption Overall | 11.7 L/100km | 10.7 L/100km |
| Fuel Tank Capacity | 55 L | 70 L |
