1968 Alfa Romeo Spider vs. 1978 Renault 18
To start off, 1978 Renault 18 is newer by 10 year(s). Which means there will be less support and parts availability for 1968 Alfa Romeo Spider. In addition, the cost of maintenance, including insurance, on 1968 Alfa Romeo Spider would be higher. At 2,580 cc (6 cylinders), 1968 Alfa Romeo Spider is equipped with a bigger engine. In terms of performance, 1968 Alfa Romeo Spider (163 HP @ 5900 RPM) has 85 more horse power than 1978 Renault 18. (78 HP @ 5000 RPM). In normal driving conditions, 1968 Alfa Romeo Spider should accelerate faster than 1978 Renault 18. With that said, vehicle weight also plays an important factor in acceleration. 1968 Alfa Romeo Spider weights approximately 305 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.
Let's talk about torque, 1968 Alfa Romeo Spider (220 Nm @ 4000 RPM) has 84 more torque (in Nm) than 1978 Renault 18. (136 Nm @ 3000 RPM). This means 1968 Alfa Romeo Spider will have an easier job in driving up hills or pulling heavy equipment than 1978 Renault 18.
Compare all specifications:
| 1968 Alfa Romeo Spider | 1978 Renault 18 | |
| Make | Alfa Romeo | Renault |
| Model | Spider | 18 |
| Year Released | 1968 | 1978 |
| Engine Position | Front | Front |
| Engine Size | 2580 cc | 1647 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 163 HP | 78 HP |
| Engine RPM | 5900 RPM | 5000 RPM |
| Torque | 220 Nm | 136 Nm |
| Torque RPM | 4000 RPM | 3000 RPM |
| Engine Bore Size | 83 mm | 81 mm |
| Engine Stroke Size | 79.6 mm | 83.5 mm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 2 seats | 5 seats |
| Vehicle Weight | 1330 kg | 1025 kg |
| Vehicle Length | 4510 mm | 4470 mm |
| Vehicle Width | 1610 mm | 1710 mm |
| Vehicle Height | 1390 mm | 1410 mm |
