2008 Audi S8 vs. 1981 Audi UR
To start off, 2008 Audi S8 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 5,204 cc (10 cylinders), 2008 Audi S8 is equipped with a bigger engine. In terms of performance, 2008 Audi S8 (450 HP @ 7000 RPM) has 253 more horse power than 1981 Audi UR. (197 HP @ 5500 RPM). In normal driving conditions, 2008 Audi S8 should accelerate faster than 1981 Audi UR. With that said, vehicle weight also plays an important factor in acceleration. 1981 Audi UR weights approximately 74 kg more than 2008 Audi S8.
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, 2008 Audi S8 (540 Nm @ 3500 RPM) has 255 more torque (in Nm) than 1981 Audi UR. (285 Nm @ 3500 RPM). This means 2008 Audi S8 will have an easier job in driving up hills or pulling heavy equipment than 1981 Audi UR. 2008 Audi S8 has automatic transmission and 1981 Audi UR has manual transmission. 1981 Audi UR will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 Audi S8 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2008 Audi S8 | 1981 Audi UR | |
| Make | Audi | Audi |
| Model | S8 | UR |
| Year Released | 2008 | 1981 |
| Engine Position | Front | Front |
| Engine Size | 5204 cc | 2144 cc |
| Engine Cylinders | 10 cylinders | 5 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 450 HP | 197 HP |
| Engine RPM | 7000 RPM | 5500 RPM |
| Torque | 540 Nm | 285 Nm |
| Torque RPM | 3500 RPM | 3500 RPM |
| Engine Bore Size | 84.5 mm | 79.5 mm |
| Engine Stroke Size | 92.8 mm | 86.4 mm |
| Engine Compression Ratio | 12.5:1 | 7.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | AWD | 4WD |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1176 kg | 1250 kg |
| Vehicle Length | 5070 mm | 4430 mm |
| Vehicle Width | 1900 mm | 1690 mm |
| Vehicle Height | 1430 mm | 1360 mm |
| Wheelbase Size | 2950 mm | 2530 mm |
| Fuel Tank Capacity | 90 L | 70 L |
