2008 Audi A4 vs. 1981 Audi UR
To start off, 2008 Audi A4 is newer by 27 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 2,144 cc (5 cylinders), 1981 Audi UR is equipped with a bigger engine. In terms of performance, 1981 Audi UR (197 HP @ 5500 RPM) has 83 more horse power than 2008 Audi A4. (114 HP @ 4000 RPM) In normal driving conditions, 1981 Audi UR should accelerate faster than 2008 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi A4 weights approximately 25 kg more than 1981 Audi UR.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear wheel drive vehicles. 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, both vehicles can yield 285 Nm of torque. So under normal driving conditions, the ability to climb up hills and pull heavy equipment should be relatively similar for both vehicles.
Compare all specifications:
| 2008 Audi A4 | 1981 Audi UR | |
| Make | Audi | Audi |
| Model | A4 | UR |
| Year Released | 2008 | 1981 |
| Engine Position | Front | Front |
| Engine Size | 1896 cc | 2144 cc |
| Engine Cylinders | 4 cylinders | 5 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 114 HP | 197 HP |
| Engine RPM | 4000 RPM | 5500 RPM |
| Torque | 285 Nm | 285 Nm |
| Torque RPM | 1900 RPM | 3500 RPM |
| Engine Bore Size | 79.6 mm | 79.5 mm |
| Engine Stroke Size | 95.5 mm | 86.4 mm |
| Engine Compression Ratio | 19.0:1 | 7.0:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1275 kg | 1250 kg |
| Vehicle Length | 4550 mm | 4430 mm |
| Vehicle Width | 1780 mm | 1690 mm |
| Vehicle Height | 1430 mm | 1360 mm |
| Wheelbase Size | 2660 mm | 2530 mm |
| Fuel Tank Capacity | 70 L | 70 L |
