2005 Audi A4 vs. 1971 Renault 15
To start off, 2005 Audi A4 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 2,976 cc (6 cylinders), 2005 Audi A4 is equipped with a bigger engine. In terms of performance, 2005 Audi A4 (218 HP @ 6300 RPM) has 129 more horse power than 1971 Renault 15. (89 HP @ 5500 RPM). In normal driving conditions, 2005 Audi A4 should accelerate faster than 1971 Renault 15. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A4 weights approximately 440 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 Audi A4 (300 Nm @ 3200 RPM) has 175 more torque (in Nm) than 1971 Renault 15. (125 Nm @ 3000 RPM). This means 2005 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1971 Renault 15.
Compare all specifications:
| 2005 Audi A4 | 1971 Renault 15 | |
| Make | Audi | Renault |
| Model | A4 | 15 |
| Year Released | 2005 | 1971 |
| Engine Position | Front | Front |
| Engine Size | 2976 cc | 1565 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 218 HP | 89 HP |
| Engine RPM | 6300 RPM | 5500 RPM |
| Torque | 300 Nm | 125 Nm |
| Torque RPM | 3200 RPM | 3000 RPM |
| Engine Bore Size | 82.5 mm | 77 mm |
| Engine Stroke Size | 92.8 mm | 84 mm |
| Engine Compression Ratio | 10.5:1 | 9.3:1 |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1460 kg | 1020 kg |
| Wheelbase Size | 2770 mm | 2440 mm |
| Fuel Tank Capacity | 70 L | 38 L |
