1981 Audi UR vs. 1957 Riley 1.5
To start off, 1981 Audi UR is newer by 24 year(s). Which means there will be less support and parts availability for 1957 Riley 1.5. In addition, the cost of maintenance, including insurance, on 1957 Riley 1.5 would be higher. At 2,144 cc (5 cylinders), 1981 Audi UR is equipped with a bigger engine. In terms of performance, 1981 Audi UR (197 HP @ 5500 RPM) has 134 more horse power than 1957 Riley 1.5. (63 HP @ 5000 RPM). In normal driving conditions, 1981 Audi UR should accelerate faster than 1957 Riley 1.5. With that said, vehicle weight also plays an important factor in acceleration. 1981 Audi UR weights approximately 315 kg more than 1957 Riley 1.5. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1981 Audi UR is four wheel drive (4WD), it will have significant more traction and grip than 1957 Riley 1.5. In wet, icy, snow, or gravel driving conditions, 1981 Audi UR will offer significantly more control. 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, 1981 Audi UR (285 Nm @ 3500 RPM) has 173 more torque (in Nm) than 1957 Riley 1.5. (112 Nm @ 2500 RPM). This means 1981 Audi UR will have an easier job in driving up hills or pulling heavy equipment than 1957 Riley 1.5.
Compare all specifications:
| 1981 Audi UR | 1957 Riley 1.5 | |
| Make | Audi | Riley |
| Model | UR | 1.5 |
| Year Released | 1981 | 1957 |
| Engine Position | Front | Front |
| Engine Size | 2144 cc | 1489 cc |
| Engine Cylinders | 5 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 197 HP | 63 HP |
| Engine RPM | 5500 RPM | 5000 RPM |
| Torque | 285 Nm | 112 Nm |
| Torque RPM | 3500 RPM | 2500 RPM |
| Engine Bore Size | 79.5 mm | 73 mm |
| Engine Stroke Size | 86.4 mm | 88.9 mm |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1250 kg | 935 kg |
| Vehicle Length | 4430 mm | 3890 mm |
| Vehicle Width | 1690 mm | 1560 mm |
| Vehicle Height | 1360 mm | 1510 mm |
| Wheelbase Size | 2530 mm | 2190 mm |
| Fuel Tank Capacity | 70 L | 31 L |
