2009 Audi S4 vs. 1971 Renault 15
To start off, 2009 Audi S4 is newer by 38 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 4,161 cc (8 cylinders), 2009 Audi S4 is equipped with a bigger engine. In terms of performance, 2009 Audi S4 (340 HP @ 6800 RPM) has 281 more horse power than 1971 Renault 15. (59 HP @ 5500 RPM). In normal driving conditions, 2009 Audi S4 should accelerate faster than 1971 Renault 15. With that said, vehicle weight also plays an important factor in acceleration. 1971 Renault 15 weights approximately 35 kg more than 2009 Audi S4.
Let's talk about torque, 2009 Audi S4 (410 Nm @ 3500 RPM) has 312 more torque (in Nm) than 1971 Renault 15. (98 Nm @ 3500 RPM). This means 2009 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1971 Renault 15.
Compare all specifications:
| 2009 Audi S4 | 1971 Renault 15 | |
| Make | Audi | Renault |
| Model | S4 | 15 |
| Year Released | 2009 | 1971 |
| Engine Position | Front | Front |
| Engine Size | 4161 cc | 1289 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 340 HP | 59 HP |
| Engine RPM | 6800 RPM | 5500 RPM |
| Torque | 410 Nm | 98 Nm |
| Torque RPM | 3500 RPM | 3500 RPM |
| Engine Bore Size | 84.5 mm | 75 mm |
| Engine Stroke Size | 92.8 mm | 69 mm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 3 doors |
| Vehicle Weight | 930 kg | 965 kg |
| Vehicle Length | 4580 mm | 4270 mm |
| Vehicle Width | 1780 mm | 1640 mm |
| Vehicle Height | 1400 mm | 1320 mm |
| Wheelbase Size | 2660 mm | 2440 mm |
| Fuel Tank Capacity | 63 L | 55 L |
