2005 Alpina Roadster vs. 2004 Porsche 911
To start off, 2005 Alpina Roadster is newer by 1 year(s). Which means there will be less support and parts availability for 2004 Porsche 911. In addition, the cost of maintenance, including insurance, on 2004 Porsche 911 would be higher. At 3,989 cc (6 cylinders), 2004 Porsche 911 is equipped with a bigger engine. In terms of performance, 2004 Porsche 911 (476 HP @ 5700 RPM) has 175 more horse power than 2005 Alpina Roadster. (301 HP @ 6300 RPM) In normal driving conditions, 2004 Porsche 911 should accelerate faster than 2005 Alpina Roadster. With that said, vehicle weight also plays an important factor in acceleration. 2005 Alpina Roadster weights approximately 111 kg more than 2004 Porsche 911.
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, 2004 Porsche 911 (640 Nm @ 3500 RPM) has 278 more torque (in Nm) than 2005 Alpina Roadster. (362 Nm @ 4800 RPM). This means 2004 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 2005 Alpina Roadster.
Compare all specifications:
| 2005 Alpina Roadster | 2004 Porsche 911 | |
| Make | Alpina | Porsche |
| Model | Roadster | 911 |
| Year Released | 2005 | 2004 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 3346 cc | 3989 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 301 HP | 476 HP |
| Engine RPM | 6300 RPM | 5700 RPM |
| Torque | 362 Nm | 640 Nm |
| Torque RPM | 4800 RPM | 3500 RPM |
| Engine Compression Ratio | 10.0:1 | 9.4:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1626 kg | 1515 kg |
| Vehicle Length | 4100 mm | 4460 mm |
| Vehicle Width | 1790 mm | 1840 mm |
| Vehicle Height | 1300 mm | 1280 mm |
| Wheelbase Size | 2500 mm | 2360 mm |
| Fuel Consumption Overall | 11.7 L/100km | 12.8 L/100km |
| Fuel Tank Capacity | 55 L | 89 L |
