2005 Audi S4 vs. 1976 Renault 15
To start off, 2005 Audi S4 is newer by 29 year(s). Which means there will be less support and parts availability for 1976 Renault 15. In addition, the cost of maintenance, including insurance, on 1976 Renault 15 would be higher. At 4,163 cc (8 cylinders), 2005 Audi S4 is equipped with a bigger engine. In terms of performance, 2005 Audi S4 (339 HP @ 7000 RPM) has 241 more horse power than 1976 Renault 15. (98 HP @ 5750 RPM). In normal driving conditions, 2005 Audi S4 should accelerate faster than 1976 Renault 15. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S4 weights approximately 615 kg more than 1976 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 S4 (430 Nm @ 3500 RPM) has 295 more torque (in Nm) than 1976 Renault 15. (135 Nm @ 3500 RPM). This means 2005 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1976 Renault 15.
Compare all specifications:
| 2005 Audi S4 | 1976 Renault 15 | |
| Make | Audi | Renault |
| Model | S4 | 15 |
| Year Released | 2005 | 1976 |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 1647 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 339 HP | 98 HP |
| Engine RPM | 7000 RPM | 5750 RPM |
| Torque | 430 Nm | 135 Nm |
| Torque RPM | 3500 RPM | 3500 RPM |
| Engine Bore Size | 84.5 mm | 79 mm |
| Engine Stroke Size | 92.8 mm | 84 mm |
| Engine Compression Ratio | 11.0:1 | 9.3:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1675 kg | 1060 kg |
| Vehicle Length | 4580 mm | 4270 mm |
| Vehicle Width | 1790 mm | 1640 mm |
| Vehicle Height | 1420 mm | 1320 mm |
| Wheelbase Size | 2580 mm | 2450 mm |
| Fuel Tank Capacity | 66 L | 56 L |
