1981 Porsche 911 vs. 2005 Porsche Carrera GT
To start off, 2005 Porsche Carrera GT is newer by 24 year(s). Which means there will be less support and parts availability for 1981 Porsche 911. In addition, the cost of maintenance, including insurance, on 1981 Porsche 911 would be higher. At 5,733 cc (10 cylinders), 2005 Porsche Carrera GT is equipped with a bigger engine. In terms of performance, 2005 Porsche Carrera GT (604 HP @ 8000 RPM) has 372 more horse power than 1981 Porsche 911. (232 HP @ 5900 RPM) In normal driving conditions, 2005 Porsche Carrera GT should accelerate faster than 1981 Porsche 911. With that said, vehicle weight also plays an important factor in acceleration. 2005 Porsche Carrera GT weights approximately 120 kg more than 1981 Porsche 911. 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 Carrera GT (590 Nm @ 5750 RPM) has 306 more torque (in Nm) than 1981 Porsche 911. (284 Nm @ 4800 RPM). This means 2005 Porsche Carrera GT will have an easier job in driving up hills or pulling heavy equipment than 1981 Porsche 911.
Compare all specifications:
| 1981 Porsche 911 | 2005 Porsche Carrera GT | |
| Make | Porsche | Porsche |
| Model | 911 | Carrera GT |
| Year Released | 1981 | 2005 |
| Body Type | Convertible | Roadster |
| Engine Position | Rear | Middle |
| Engine Size | 3164 cc | 5733 cc |
| Engine Cylinders | 6 cylinders | 10 cylinders |
| Engine Type | boxer | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 232 HP | 604 HP |
| Engine RPM | 5900 RPM | 8000 RPM |
| Torque | 284 Nm | 590 Nm |
| Torque RPM | 4800 RPM | 5750 RPM |
| Engine Bore Size | 95 mm | 98 mm |
| Engine Stroke Size | 74.4 mm | 76 mm |
| Engine Compression Ratio | 10.3:1 | 12.0:1 |
| Top Speed | 246 km/hour | 330 km/hour |
| Acceleration 0-100mph | 6.3 seconds | 3.9 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1260 kg | 1380 kg |
| Vehicle Length | 4300 mm | 4620 mm |
| Vehicle Width | 1660 mm | 1930 mm |
| Vehicle Height | 1330 mm | 1170 mm |
| Wheelbase Size | 2270 mm | 2860 mm |
| Fuel Tank Capacity | 80 L | 92 L |
