2009 Alpina Roadster vs. 2005 Porsche 911
To start off, 2009 Alpina Roadster is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Porsche 911. In addition, the cost of maintenance, including insurance, on 2005 Porsche 911 would be higher. At 3,596 cc (6 cylinders), 2005 Porsche 911 is equipped with a bigger engine. In terms of performance, 2005 Porsche 911 (320 HP @ 6800 RPM) has 24 more horse power than 2009 Alpina Roadster. (296 HP @ 6300 RPM) In normal driving conditions, 2005 Porsche 911 should accelerate faster than 2009 Alpina Roadster. With that said, vehicle weight also plays an important factor in acceleration. 2005 Porsche 911 weights approximately 75 kg more than 2009 Alpina Roadster. 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, 2005 Porsche 911 (370 Nm @ 4250 RPM) has 8 more torque (in Nm) than 2009 Alpina Roadster. (362 Nm @ 4800 RPM). This means 2005 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 2009 Alpina Roadster.
Compare all specifications:
| 2009 Alpina Roadster | 2005 Porsche 911 | |
| Make | Alpina | Porsche |
| Model | Roadster | 911 |
| Year Released | 2009 | 2005 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 3346 cc | 3596 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 296 HP | 320 HP |
| Engine RPM | 6300 RPM | 6800 RPM |
| Torque | 362 Nm | 370 Nm |
| Torque RPM | 4800 RPM | 4250 RPM |
| Engine Compression Ratio | 10.2:1 | 11.3:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 265 km/hour | 280 km/hour |
| Acceleration 0-100mph | 5.3 seconds | 5 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1395 kg | 1470 kg |
| Vehicle Length | 4100 mm | 4470 mm |
| Vehicle Width | 1790 mm | 1810 mm |
| Vehicle Height | 1300 mm | 1320 mm |
| Wheelbase Size | 2500 mm | 2360 mm |
| Fuel Consumption Overall | 10 L/100km | 11 L/100km |
| Fuel Tank Capacity | 55 L | 64 L |
