1979 Renault 18 vs. 2002 Opel Signum
To start off, 2002 Opel Signum is newer by 23 year(s). Which means there will be less support and parts availability for 1979 Renault 18. In addition, the cost of maintenance, including insurance, on 1979 Renault 18 would be higher. At 2,957 cc (6 cylinders), 2002 Opel Signum is equipped with a bigger engine. In terms of performance, 2002 Opel Signum (174 HP @ 4000 RPM) has 94 more horse power than 1979 Renault 18. (80 HP @ 5000 RPM) In normal driving conditions, 2002 Opel Signum should accelerate faster than 1979 Renault 18. With that said, vehicle weight also plays an important factor in acceleration. 2002 Opel Signum weights approximately 645 kg more than 1979 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, 2002 Opel Signum (377 Nm @ 1900 RPM) has 241 more torque (in Nm) than 1979 Renault 18. (136 Nm @ 3000 RPM). This means 2002 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1979 Renault 18. 2002 Opel Signum has automatic transmission and 1979 Renault 18 has manual transmission. 1979 Renault 18 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2002 Opel Signum will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1979 Renault 18 | 2002 Opel Signum | |
| Make | Renault | Opel |
| Model | 18 | Signum |
| Year Released | 1979 | 2002 |
| Engine Position | Front | Front |
| Engine Size | 1647 cc | 2957 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 80 HP | 174 HP |
| Engine RPM | 5000 RPM | 4000 RPM |
| Torque | 136 Nm | 377 Nm |
| Torque RPM | 3000 RPM | 1900 RPM |
| Engine Bore Size | 81 mm | 87.5 mm |
| Engine Stroke Size | 83.5 mm | 82 mm |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Front | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1025 kg | 1670 kg |
| Vehicle Length | 4470 mm | 4640 mm |
| Vehicle Width | 1710 mm | 1800 mm |
| Vehicle Height | 1410 mm | 1470 mm |
