1966 Riley 4 vs. 1958 Riley Two Point Six
To start off, 1966 Riley 4 is newer by 8 year(s). Which means there will be less support and parts availability for 1958 Riley Two Point Six. In addition, the cost of maintenance, including insurance, on 1958 Riley Two Point Six would be higher. At 2,639 cc (6 cylinders), 1958 Riley Two Point Six is equipped with a bigger engine. In terms of performance, 1958 Riley Two Point Six (96 HP) has 29 more horse power than 1966 Riley 4. (67 HP) In normal driving conditions, 1958 Riley Two Point Six should accelerate faster than 1966 Riley 4. With that said, vehicle weight also plays an important factor in acceleration. 1958 Riley Two Point Six weights approximately 492 kg more than 1966 Riley 4. 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, 1958 Riley Two Point Six (183 Nm @ 2000 RPM) has 61 more torque (in Nm) than 1966 Riley 4. (122 Nm @ 2500 RPM). This means 1958 Riley Two Point Six will have an easier job in driving up hills or pulling heavy equipment than 1966 Riley 4.
Compare all specifications:
| 1966 Riley 4 | 1958 Riley Two Point Six | |
| Make | Riley | Riley |
| Model | 4 | Two Point Six |
| Year Released | 1966 | 1958 |
| Engine Position | Front | Front |
| Engine Size | 1622 cc | 2639 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 67 HP | 96 HP |
| Torque | 122 Nm | 183 Nm |
| Torque RPM | 2500 RPM | 2000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1148 kg | 1640 kg |
| Vehicle Length | 4540 mm | 4720 mm |
| Vehicle Width | 1620 mm | 1710 mm |
| Vehicle Height | 1530 mm | 1560 mm |
| Wheelbase Size | 2530 mm | 2890 mm |
