2009 Audi A5 vs. 1981 Audi UR
To start off, 2009 Audi A5 is newer by 28 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 2,698 cc (6 cylinders), 2009 Audi A5 is equipped with a bigger engine. In terms of performance, 1981 Audi UR (197 HP @ 5500 RPM) has 10 more horse power than 2009 Audi A5. (187 HP @ 3500 RPM) In normal driving conditions, 1981 Audi UR should accelerate faster than 2009 Audi A5. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A5 weights approximately 325 kg more than 1981 Audi UR.
Because 1981 Audi UR is four wheel drive (4WD), it will have significant more traction and grip than 2009 Audi A5. 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, 2009 Audi A5 (400 Nm @ 1400 RPM) has 115 more torque (in Nm) than 1981 Audi UR. (285 Nm @ 3500 RPM). This means 2009 Audi A5 will have an easier job in driving up hills or pulling heavy equipment than 1981 Audi UR.
Compare all specifications:
| 2009 Audi A5 | 1981 Audi UR | |
| Make | Audi | Audi |
| Model | A5 | UR |
| Year Released | 2009 | 1981 |
| Engine Position | Front | Front |
| Engine Size | 2698 cc | 2144 cc |
| Engine Cylinders | 6 cylinders | 5 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 187 HP | 197 HP |
| Engine RPM | 3500 RPM | 5500 RPM |
| Torque | 400 Nm | 285 Nm |
| Torque RPM | 1400 RPM | 3500 RPM |
| Engine Bore Size | 83 mm | 79.5 mm |
| Engine Stroke Size | 83.1 mm | 86.4 mm |
| Engine Compression Ratio | 16.8:1 | 7.0:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Front | 4WD |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1575 kg | 1250 kg |
| Vehicle Length | 4630 mm | 4430 mm |
| Vehicle Width | 1860 mm | 1690 mm |
| Vehicle Height | 1380 mm | 1360 mm |
| Wheelbase Size | 2760 mm | 2530 mm |
| Fuel Tank Capacity | 65 L | 70 L |
