2005 Audi A4 vs. 1978 Renault 18
To start off, 2005 Audi A4 is newer by 27 year(s). Which means there will be less support and parts availability for 1978 Renault 18. In addition, the cost of maintenance, including insurance, on 1978 Renault 18 would be higher. At 2,981 cc (6 cylinders), 2005 Audi A4 is equipped with a bigger engine. In terms of performance, 2005 Audi A4 (217 HP @ 6300 RPM) has 113 more horse power than 1978 Renault 18. (104 HP @ 5500 RPM). In normal driving conditions, 2005 Audi A4 should accelerate faster than 1978 Renault 18. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A4 weights approximately 543 kg more than 1978 Renault 18. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 1978 Renault 18. In wet, icy, snow, or gravel driving conditions, 2005 Audi A4 will offer significantly more control. 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, 2005 Audi A4 (300 Nm @ 3200 RPM) has 140 more torque (in Nm) than 1978 Renault 18. (160 Nm @ 3000 RPM). This means 2005 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1978 Renault 18.
Compare all specifications:
| 2005 Audi A4 | 1978 Renault 18 | |
| Make | Audi | Renault |
| Model | A4 | 18 |
| Year Released | 2005 | 1978 |
| Engine Position | Front | Front |
| Engine Size | 2981 cc | 1995 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 217 HP | 104 HP |
| Engine RPM | 6300 RPM | 5500 RPM |
| Torque | 300 Nm | 160 Nm |
| Torque RPM | 3200 RPM | 3000 RPM |
| Engine Bore Size | 82.5 mm | 88 mm |
| Engine Stroke Size | 92.8 mm | 82 mm |
| Top Speed | 236 km/hour | 171 km/hour |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1610 kg | 1067 kg |
| Vehicle Length | 4550 mm | 4380 mm |
| Vehicle Width | 1780 mm | 1680 mm |
| Vehicle Height | 1430 mm | 1410 mm |
| Wheelbase Size | 2660 mm | 2470 mm |
| Fuel Tank Capacity | 66 L | 53 L |
