1991 Audi Coupe vs. 1978 Renault 18
To start off, 1991 Audi Coupe is newer by 13 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 1,982 cc (4 cylinders), 1991 Audi Coupe is equipped with a bigger engine. In terms of performance, 1991 Audi Coupe (111 HP @ 5300 RPM) has 33 more horse power than 1978 Renault 18. (78 HP @ 5000 RPM). In normal driving conditions, 1991 Audi Coupe should accelerate faster than 1978 Renault 18. With that said, vehicle weight also plays an important factor in acceleration. 1991 Audi Coupe weights approximately 160 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.
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, 1991 Audi Coupe (168 Nm @ 3250 RPM) has 35 more torque (in Nm) than 1978 Renault 18. (133 Nm @ 3000 RPM). This means 1991 Audi Coupe will have an easier job in driving up hills or pulling heavy equipment than 1978 Renault 18.
Compare all specifications:
| 1991 Audi Coupe | 1978 Renault 18 | |
| Make | Audi | Renault |
| Model | Coupe | 18 |
| Year Released | 1991 | 1978 |
| Engine Position | Front | Front |
| Engine Size | 1982 cc | 1645 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 111 HP | 78 HP |
| Engine RPM | 5300 RPM | 5000 RPM |
| Torque | 168 Nm | 133 Nm |
| Torque RPM | 3250 RPM | 3000 RPM |
| Engine Bore Size | 82.5 mm | 81 mm |
| Engine Stroke Size | 92.8 mm | 83.5 mm |
| Engine Compression Ratio | 10.5:1 | 10.0:1 |
| Fuel Type | Gasoline | 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 | 1130 kg | 970 kg |
| Vehicle Length | 4490 mm | 4390 mm |
| Vehicle Width | 1720 mm | 1710 mm |
| Vehicle Height | 1380 mm | 1410 mm |
| Wheelbase Size | 2560 mm | 2450 mm |
| Fuel Tank Capacity | 64 L | 53 L |
