2005 Audi S4 vs. 1984 Renault 18
To start off, 2005 Audi S4 is newer by 21 year(s). Which means there will be less support and parts availability for 1984 Renault 18. In addition, the cost of maintenance, including insurance, on 1984 Renault 18 would be higher. At 4,161 cc (8 cylinders), 2005 Audi S4 is equipped with a bigger engine. In terms of performance, 2005 Audi S4 (340 HP @ 6300 RPM) has 262 more horse power than 1984 Renault 18. (78 HP @ 5000 RPM). In normal driving conditions, 2005 Audi S4 should accelerate faster than 1984 Renault 18. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S4 weights approximately 815 kg more than 1984 Renault 18. 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 (410 Nm) has 274 more torque (in Nm) than 1984 Renault 18. (136 Nm). This means 2005 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1984 Renault 18.
Compare all specifications:
| 2005 Audi S4 | 1984 Renault 18 | |
| Make | Audi | Renault |
| Model | S4 | 18 |
| Year Released | 2005 | 1984 |
| Engine Position | Front | Front |
| Engine Size | 4161 cc | 1647 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 340 HP | 78 HP |
| Engine RPM | 6300 RPM | 5000 RPM |
| Torque | 410 Nm | 136 Nm |
| Engine Bore Size | 85 mm | 81 mm |
| Engine Stroke Size | 93 mm | 83.5 mm |
| Number of Seats | 4 seats | 5 seats |
| Vehicle Weight | 1840 kg | 1025 kg |
| Vehicle Length | 4580 mm | 4470 mm |
| Vehicle Width | 1780 mm | 1710 mm |
| Vehicle Height | 1400 mm | 1410 mm |
