2004 Porsche 911 vs. 1971 Rover P6
To start off, 2004 Porsche 911 is newer by 33 year(s). Which means there will be less support and parts availability for 1971 Rover P6. In addition, the cost of maintenance, including insurance, on 1971 Rover P6 would be higher. At 3,600 cc (6 cylinders), 2004 Porsche 911 is equipped with a bigger engine. In terms of performance, 2004 Porsche 911 (444 HP @ 5700 RPM) has 294 more horse power than 1971 Rover P6. (150 HP @ 5000 RPM). In normal driving conditions, 2004 Porsche 911 should accelerate faster than 1971 Rover P6. With that said, vehicle weight also plays an important factor in acceleration. 2004 Porsche 911 weights approximately 365 kg more than 1971 Rover P6. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 Porsche 911 is four wheel drive (4WD), it will have significant more traction and grip than 1971 Rover P6. In wet, icy, snow, or gravel driving conditions, 2004 Porsche 911 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, 2004 Porsche 911 (620 Nm @ 3500 RPM) has 346 more torque (in Nm) than 1971 Rover P6. (274 Nm @ 2750 RPM). This means 2004 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1971 Rover P6.
Compare all specifications:
| 2004 Porsche 911 | 1971 Rover P6 | |
| Make | Porsche | Rover |
| Model | 911 | P6 |
| Year Released | 2004 | 1971 |
| Engine Position | Rear | Front |
| Engine Size | 3600 cc | 3532 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | boxer | V |
| Horse Power | 444 HP | 150 HP |
| Engine RPM | 5700 RPM | 5000 RPM |
| Torque | 620 Nm | 274 Nm |
| Torque RPM | 3500 RPM | 2750 RPM |
| Engine Bore Size | 100 mm | 88.9 mm |
| Engine Stroke Size | 76.4 mm | 71.1 mm |
| Top Speed | 307 km/hour | 192 km/hour |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1660 kg | 1295 kg |
| Vehicle Length | 4440 mm | 4570 mm |
| Vehicle Width | 1840 mm | 1680 mm |
| Vehicle Height | 1300 mm | 1430 mm |
| Wheelbase Size | 2360 mm | 2630 mm |
