1984 Renault 25 vs. 1971 Riley 4
To start off, 1984 Renault 25 is newer by 13 year(s). Which means there will be less support and parts availability for 1971 Riley 4. In addition, the cost of maintenance, including insurance, on 1971 Riley 4 would be higher. At 2,068 cc (4 cylinders), 1984 Renault 25 is equipped with a bigger engine. In terms of performance, 1984 Renault 25 (103 HP @ 5500 RPM) has 36 more horse power than 1971 Riley 4. (67 HP @ 5000 RPM). In normal driving conditions, 1984 Renault 25 should accelerate faster than 1971 Riley 4. With that said, vehicle weight also plays an important factor in acceleration. 1984 Renault 25 weights approximately 7 kg more than 1971 Riley 4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1971 Riley 4 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 1971 Riley 4. However, in wet, icy, snow, or gravel driving conditions, 1984 Renault 25, 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, 1984 Renault 25 (158 Nm @ 3000 RPM) has 37 more torque (in Nm) than 1971 Riley 4. (121 Nm @ 2500 RPM). This means 1984 Renault 25 will have an easier job in driving up hills or pulling heavy equipment than 1971 Riley 4.
Compare all specifications:
| 1984 Renault 25 | 1971 Riley 4 | |
| Make | Renault | Riley |
| Model | 25 | 4 |
| Year Released | 1984 | 1971 |
| Engine Position | Front | Front |
| Engine Size | 2068 cc | 1622 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 103 HP | 67 HP |
| Engine RPM | 5500 RPM | 5000 RPM |
| Torque | 158 Nm | 121 Nm |
| Torque RPM | 3000 RPM | 2500 RPM |
| Engine Bore Size | 88 mm | 76.3 mm |
| Engine Stroke Size | 82 mm | 88.9 mm |
| Engine Compression Ratio | 9.2:1 | 8.3:1 |
| Drive Type | Front | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1155 kg | 1148 kg |
| Vehicle Length | 4630 mm | 4540 mm |
| Vehicle Width | 1780 mm | 1620 mm |
| Vehicle Height | 1410 mm | 1510 mm |
| Wheelbase Size | 2730 mm | 2530 mm |
| Fuel Tank Capacity | 34 L | 45 L |
