1981 Audi UR vs. 1974 BMW 518
To start off, 1981 Audi UR is newer by 7 year(s). Which means there will be less support and parts availability for 1974 BMW 518. In addition, the cost of maintenance, including insurance, on 1974 BMW 518 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 107 more horse power than 1974 BMW 518. (90 HP @ 5500 RPM). In normal driving conditions, 1981 Audi UR should accelerate faster than 1974 BMW 518. With that said, vehicle weight also plays an important factor in acceleration. 1981 Audi UR weights approximately 10 kg more than 1974 BMW 518. 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 1974 BMW 518. 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 139 more torque (in Nm) than 1974 BMW 518. (146 Nm @ 3500 RPM). This means 1981 Audi UR will have an easier job in driving up hills or pulling heavy equipment than 1974 BMW 518.
Compare all specifications:
| 1981 Audi UR | 1974 BMW 518 | |
| Make | Audi | BMW |
| Model | UR | 518 |
| Year Released | 1981 | 1974 |
| Engine Position | Front | Front |
| Engine Size | 2144 cc | 1766 cc |
| Engine Cylinders | 5 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 197 HP | 90 HP |
| Engine RPM | 5500 RPM | 5500 RPM |
| Torque | 285 Nm | 146 Nm |
| Torque RPM | 3500 RPM | 3500 RPM |
| Engine Compression Ratio | 7.0:1 | 8.3:1 |
| 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 | 1240 kg |
| Vehicle Length | 4430 mm | 4630 mm |
| Vehicle Width | 1690 mm | 1700 mm |
| Vehicle Height | 1360 mm | 1430 mm |
| Wheelbase Size | 2530 mm | 2650 mm |
| Fuel Tank Capacity | 70 L | 70 L |
