2004 Audi S4 vs. 1987 Renault 21
To start off, 2004 Audi S4 is newer by 17 year(s). Which means there will be less support and parts availability for 1987 Renault 21. In addition, the cost of maintenance, including insurance, on 1987 Renault 21 would be higher. At 4,163 cc (8 cylinders), 2004 Audi S4 is equipped with a bigger engine. In terms of performance, 2004 Audi S4 (340 HP @ 6200 RPM) has 165 more horse power than 1987 Renault 21. (175 HP @ 5200 RPM). In normal driving conditions, 2004 Audi S4 should accelerate faster than 1987 Renault 21. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi S4 weights approximately 705 kg more than 1987 Renault 21. 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 (411 Nm) has 141 more torque (in Nm) than 1987 Renault 21. (270 Nm). This means 2004 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1987 Renault 21.
Compare all specifications:
| 2004 Audi S4 | 1987 Renault 21 | |
| Make | Audi | Renault |
| Model | S4 | 21 |
| Year Released | 2004 | 1987 |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 1995 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 340 HP | 175 HP |
| Engine RPM | 6200 RPM | 5200 RPM |
| Torque | 411 Nm | 270 Nm |
| Engine Bore Size | 85 mm | 88 mm |
| Engine Stroke Size | 93 mm | 82 mm |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1895 kg | 1190 kg |
| Vehicle Length | 4580 mm | 4650 mm |
| Vehicle Width | 1780 mm | 1720 mm |
| Vehicle Height | 1400 mm | 1380 mm |
| Wheelbase Size | 2770 mm | 2610 mm |
