1981 Audi UR vs. 2005 Audi A4
To start off, 2005 Audi A4 is newer by 24 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 2,983 cc (6 cylinders), 2005 Audi A4 is equipped with a bigger engine. In terms of performance, 2005 Audi A4 (217 HP @ 6300 RPM) has 20 more horse power than 1981 Audi UR. (197 HP @ 5500 RPM) In normal driving conditions, 2005 Audi A4 should accelerate faster than 1981 Audi UR. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A4 weights approximately 425 kg more than 1981 Audi UR. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2005 Audi A4 (301 Nm @ 3200 RPM) has 16 more torque (in Nm) than 1981 Audi UR. (285 Nm @ 3500 RPM). This means 2005 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1981 Audi UR.
Compare all specifications:
| 1981 Audi UR | 2005 Audi A4 | |
| Make | Audi | Audi |
| Model | UR | A4 |
| Year Released | 1981 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 2144 cc | 2983 cc |
| Engine Cylinders | 5 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 5 valves |
| Horse Power | 197 HP | 217 HP |
| Engine RPM | 5500 RPM | 6300 RPM |
| Torque | 285 Nm | 301 Nm |
| Torque RPM | 3500 RPM | 3200 RPM |
| Engine Bore Size | 79.5 mm | 82.5 mm |
| Engine Stroke Size | 86.4 mm | 92.8 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | 4WD | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1250 kg | 1675 kg |
| Vehicle Length | 4430 mm | 4580 mm |
| Vehicle Width | 1690 mm | 1780 mm |
| Vehicle Height | 1360 mm | 1400 mm |
| Wheelbase Size | 2530 mm | 2660 mm |
| Fuel Tank Capacity | 70 L | 66 L |
