2005 Porsche 911 vs. 1971 Renault 15
To start off, 2005 Porsche 911 is newer by 34 year(s). Which means there will be less support and parts availability for 1971 Renault 15. In addition, the cost of maintenance, including insurance, on 1971 Renault 15 would be higher. At 3,605 cc (6 cylinders), 2005 Porsche 911 is equipped with a bigger engine. In terms of performance, 2005 Porsche 911 (445 HP @ 6000 RPM) has 356 more horse power than 1971 Renault 15. (89 HP @ 5500 RPM). In normal driving conditions, 2005 Porsche 911 should accelerate faster than 1971 Renault 15. With that said, vehicle weight also plays an important factor in acceleration. 2005 Porsche 911 weights approximately 570 kg more than 1971 Renault 15. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2005 Porsche 911 (620 Nm) has 495 more torque (in Nm) than 1971 Renault 15. (125 Nm). This means 2005 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1971 Renault 15.
Compare all specifications:
| 2005 Porsche 911 | 1971 Renault 15 | |
| Make | Porsche | Renault |
| Model | 911 | 15 |
| Year Released | 2005 | 1971 |
| Engine Position | Rear | Front |
| Engine Size | 3605 cc | 1565 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | boxer | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 445 HP | 89 HP |
| Engine RPM | 6000 RPM | 5500 RPM |
| Torque | 620 Nm | 125 Nm |
| Engine Bore Size | 100 mm | 77 mm |
| Engine Stroke Size | 76 mm | 84 mm |
| Engine Compression Ratio | 9.4:1 | 9.3:1 |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 3 doors |
| Vehicle Weight | 1590 kg | 1020 kg |
| Vehicle Length | 4440 mm | 4260 mm |
| Vehicle Width | 1840 mm | 1640 mm |
| Vehicle Height | 1300 mm | 1320 mm |
| Wheelbase Size | 2360 mm | 2440 mm |
| Fuel Tank Capacity | 63 L | 38 L |
