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 1,779 cc (4 cylinders), 2005 Audi A4 is equipped with a bigger engine. In terms of performance, 2005 Audi A4 (187 HP @ 5700 RPM) has 98 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 925 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 (240 Nm @ 1950 RPM) has 115 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 | 1779 cc | 1565 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 5 valves | 2 valves |
| Horse Power | 187 HP | 89 HP |
| Engine RPM | 5700 RPM | 5500 RPM |
| Torque | 240 Nm | 125 Nm |
| Torque RPM | 1950 RPM | 3000 RPM |
| Engine Bore Size | 81 mm | 77 mm |
| Engine Stroke Size | 86.4 mm | 84 mm |
| Engine Compression Ratio | 9.0:1 | 9.3:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1945 kg | 1020 kg |
| Vehicle Length | 4550 mm | 4260 mm |
| Vehicle Width | 1770 mm | 1640 mm |
| Vehicle Height | 1430 mm | 1320 mm |
| Wheelbase Size | 2580 mm | 2440 mm |
| Fuel Tank Capacity | 70 L | 38 L |
