2007 Audi A4 vs. 1986 Renault 21
To start off, 2007 Audi A4 is newer by 21 year(s). Which means there will be less support and parts availability for 1986 Renault 21. In addition, the cost of maintenance, including insurance, on 1986 Renault 21 would be higher. At 2,495 cc (6 cylinders), 2007 Audi A4 is equipped with a bigger engine. In terms of performance, 2007 Audi A4 (161 HP @ 4000 RPM) has 74 more horse power than 1986 Renault 21. (87 HP @ 4250 RPM). In normal driving conditions, 2007 Audi A4 should accelerate faster than 1986 Renault 21. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi A4 weights approximately 425 kg more than 1986 Renault 21. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2007 Audi A4 (350 Nm @ 1500 RPM) has 165 more torque (in Nm) than 1986 Renault 21. (185 Nm @ 2000 RPM). This means 2007 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1986 Renault 21.
Compare all specifications:
| 2007 Audi A4 | 1986 Renault 21 | |
| Make | Audi | Renault |
| Model | A4 | 21 |
| Year Released | 2007 | 1986 |
| Engine Position | Front | Front |
| Engine Size | 2495 cc | 2067 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 161 HP | 87 HP |
| Engine RPM | 4000 RPM | 4250 RPM |
| Torque | 350 Nm | 185 Nm |
| Torque RPM | 1500 RPM | 2000 RPM |
| Engine Bore Size | 78.3 mm | 86 mm |
| Engine Stroke Size | 86.4 mm | 89 mm |
| Engine Compression Ratio | 18.0:1 | 21.0:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1560 kg | 1135 kg |
| Vehicle Length | 4550 mm | 4540 mm |
| Vehicle Width | 1780 mm | 1720 mm |
| Vehicle Height | 1430 mm | 1430 mm |
| Wheelbase Size | 2660 mm | 2670 mm |
