2004 Audi S4 vs. 1974 Renault 15
To start off, 2004 Audi S4 is newer by 30 year(s). Which means there will be less support and parts availability for 1974 Renault 15. In addition, the cost of maintenance, including insurance, on 1974 Renault 15 would be higher. At 4,172 cc (8 cylinders), 2004 Audi S4 is equipped with a bigger engine. In terms of performance, 2004 Audi S4 (339 HP @ 7000 RPM) has 280 more horse power than 1974 Renault 15. (59 HP @ 5500 RPM). In normal driving conditions, 2004 Audi S4 should accelerate faster than 1974 Renault 15. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi S4 weights approximately 755 kg more than 1974 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, 2004 Audi S4 (410 Nm @ 3500 RPM) has 312 more torque (in Nm) than 1974 Renault 15. (98 Nm @ 3500 RPM). This means 2004 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1974 Renault 15.
Compare all specifications:
| 2004 Audi S4 | 1974 Renault 15 | |
| Make | Audi | Renault |
| Model | S4 | 15 |
| Year Released | 2004 | 1974 |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 1287 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 339 HP | 59 HP |
| Engine RPM | 7000 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 |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 3 doors |
| Vehicle Weight | 1720 kg | 965 kg |
| Vehicle Length | 4590 mm | 4270 mm |
| Vehicle Width | 1780 mm | 1640 mm |
| Vehicle Height | 1430 mm | 1310 mm |
| Wheelbase Size | 2470 mm | 2440 mm |
| Fuel Tank Capacity | 63 L | 55 L |
