1956 Armstrong Siddeley Sapphire vs. 1979 Renault 18
To start off, 1979 Renault 18 is newer by 23 year(s). Which means there will be less support and parts availability for 1956 Armstrong Siddeley Sapphire. In addition, the cost of maintenance, including insurance, on 1956 Armstrong Siddeley Sapphire would be higher. At 2,307 cc (6 cylinders), 1956 Armstrong Siddeley Sapphire is equipped with a bigger engine. In terms of performance, 1956 Armstrong Siddeley Sapphire (85 HP @ 4400 RPM) has 22 more horse power than 1979 Renault 18. (63 HP @ 5500 RPM). In normal driving conditions, 1956 Armstrong Siddeley Sapphire should accelerate faster than 1979 Renault 18. With that said, vehicle weight also plays an important factor in acceleration. 1956 Armstrong Siddeley Sapphire weights approximately 375 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.
Because 1956 Armstrong Siddeley Sapphire is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1956 Armstrong Siddeley Sapphire. However, in wet, icy, snow, or gravel driving conditions, 1979 Renault 18, being front wheel drive (FWD), will offer much better control with better grip. 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, 1956 Armstrong Siddeley Sapphire (160 Nm @ 1750 RPM) has 57 more torque (in Nm) than 1979 Renault 18. (103 Nm @ 3000 RPM). This means 1956 Armstrong Siddeley Sapphire will have an easier job in driving up hills or pulling heavy equipment than 1979 Renault 18.
Compare all specifications:
| 1956 Armstrong Siddeley Sapphire | 1979 Renault 18 | |
| Make | Armstrong Siddeley | Renault |
| Model | Sapphire | 18 |
| Year Released | 1956 | 1979 |
| Engine Position | Front | Front |
| Engine Size | 2307 cc | 1397 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 85 HP | 63 HP |
| Engine RPM | 4400 RPM | 5500 RPM |
| Torque | 160 Nm | 103 Nm |
| Torque RPM | 1750 RPM | 3000 RPM |
| Engine Compression Ratio | 7.5:1 | 9.2:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1360 kg | 985 kg |
| Vehicle Length | 4580 mm | 4410 mm |
| Vehicle Width | 1730 mm | 1710 mm |
| Vehicle Height | 1570 mm | 1410 mm |
| Wheelbase Size | 2900 mm | 2450 mm |
