1991 Audi 100 vs. 1981 Audi UR
To start off, 1991 Audi 100 is newer by 10 year(s). Which means there will be less support and parts availability for 1981 Audi UR. In addition, the cost of maintenance, including insurance, on 1981 Audi UR would be higher. At 2,309 cc (5 cylinders), 1991 Audi 100 is equipped with a bigger engine. In terms of performance, 1981 Audi UR (197 HP @ 5500 RPM) has 66 more horse power than 1991 Audi 100. (131 HP @ 5500 RPM) In normal driving conditions, 1981 Audi UR should accelerate faster than 1991 Audi 100. With that said, vehicle weight also plays an important factor in acceleration. 1991 Audi 100 weights approximately 160 kg more than 1981 Audi UR.
Because 1981 Audi UR is four wheel drive (4WD), it will have significant more traction and grip than 1991 Audi 100. 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 99 more torque (in Nm) than 1991 Audi 100. (186 Nm @ 4000 RPM). This means 1981 Audi UR will have an easier job in driving up hills or pulling heavy equipment than 1991 Audi 100.
Compare all specifications:
| 1991 Audi 100 | 1981 Audi UR | |
| Make | Audi | Audi |
| Model | 100 | UR |
| Year Released | 1991 | 1981 |
| Engine Position | Front | Front |
| Engine Size | 2309 cc | 2144 cc |
| Engine Cylinders | 5 cylinders | 5 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 131 HP | 197 HP |
| Engine RPM | 5500 RPM | 5500 RPM |
| Torque | 186 Nm | 285 Nm |
| Torque RPM | 4000 RPM | 3500 RPM |
| Engine Bore Size | 82.5 mm | 79.5 mm |
| Engine Stroke Size | 86.4 mm | 86.4 mm |
| Engine Compression Ratio | 10.0:1 | 7.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Weight | 1410 kg | 1250 kg |
| Vehicle Length | 4800 mm | 4430 mm |
| Vehicle Width | 1780 mm | 1690 mm |
| Vehicle Height | 1450 mm | 1360 mm |
