1965 Riley One-Point-Five vs. 1971 Riley 4
To start off, 1971 Riley 4 is newer by 6 year(s). Which means there will be less support and parts availability for 1965 Riley One-Point-Five. In addition, the cost of maintenance, including insurance, on 1965 Riley One-Point-Five would be higher. At 1,622 cc (4 cylinders), 1971 Riley 4 is equipped with a bigger engine. In terms of performance, 1971 Riley 4 (67 HP @ 5000 RPM) has 5 more horse power than 1965 Riley One-Point-Five. (62 HP @ 4500 RPM) In normal driving conditions, 1971 Riley 4 should accelerate faster than 1965 Riley One-Point-Five. With that said, vehicle weight also plays an important factor in acceleration. 1971 Riley 4 weights approximately 213 kg more than 1965 Riley One-Point-Five. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front 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, 1971 Riley 4 (121 Nm @ 2500 RPM) has 9 more torque (in Nm) than 1965 Riley One-Point-Five. (112 Nm @ 3000 RPM). This means 1971 Riley 4 will have an easier job in driving up hills or pulling heavy equipment than 1965 Riley One-Point-Five.
Compare all specifications:
| 1965 Riley One-Point-Five | 1971 Riley 4 | |
| Make | Riley | Riley |
| Model | One-Point-Five | 4 |
| Year Released | 1965 | 1971 |
| Engine Position | Front | Front |
| Engine Size | 1489 cc | 1622 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 62 HP | 67 HP |
| Engine RPM | 4500 RPM | 5000 RPM |
| Torque | 112 Nm | 121 Nm |
| Torque RPM | 3000 RPM | 2500 RPM |
| Engine Bore Size | 73 mm | 76.3 mm |
| Engine Stroke Size | 88.9 mm | 88.9 mm |
| Engine Compression Ratio | 8.3:1 | 8.3:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 935 kg | 1148 kg |
| Vehicle Length | 3890 mm | 4540 mm |
| Vehicle Width | 1560 mm | 1620 mm |
| Vehicle Height | 1530 mm | 1510 mm |
| Wheelbase Size | 2190 mm | 2530 mm |
| Fuel Tank Capacity | 25 L | 45 L |
