1999 Audi A4 vs. 1971 Renault 15
To start off, 1999 Audi A4 is newer by 28 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 1,781 cc (4 cylinders), 1999 Audi A4 is equipped with a bigger engine. In terms of performance, 1999 Audi A4 (123 HP @ 5800 RPM) has 34 more horse power than 1971 Renault 15. (89 HP @ 5500 RPM). In normal driving conditions, 1999 Audi A4 should accelerate faster than 1971 Renault 15. With that said, vehicle weight also plays an important factor in acceleration. 1999 Audi A4 weights approximately 336 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, 1999 Audi A4 (168 Nm @ 3500 RPM) has 43 more torque (in Nm) than 1971 Renault 15. (125 Nm @ 3000 RPM). This means 1999 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1971 Renault 15.
Compare all specifications:
| 1999 Audi A4 | 1971 Renault 15 | |
| Make | Audi | Renault |
| Model | A4 | 15 |
| Year Released | 1999 | 1971 |
| Engine Position | Front | Front |
| Engine Size | 1781 cc | 1565 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 123 HP | 89 HP |
| Engine RPM | 5800 RPM | 5500 RPM |
| Torque | 168 Nm | 125 Nm |
| Torque RPM | 3500 RPM | 3000 RPM |
| Engine Bore Size | 81 mm | 77 mm |
| Engine Stroke Size | 86.4 mm | 84 mm |
| Engine Compression Ratio | 10.3:1 | 9.3:1 |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1356 kg | 1020 kg |
| Vehicle Length | 4480 mm | 4260 mm |
| Vehicle Width | 1740 mm | 1640 mm |
| Vehicle Height | 1420 mm | 1320 mm |
| Wheelbase Size | 2610 mm | 2440 mm |
| Fuel Tank Capacity | 60 L | 38 L |
