1987 Aston Martin V8 Volante vs. 1981 Audi UR
To start off, 1987 Aston Martin V8 Volante is newer by 6 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 5,341 cc (8 cylinders), 1987 Aston Martin V8 Volante is equipped with a bigger engine. In terms of performance, 1987 Aston Martin V8 Volante (305 HP @ 5000 RPM) has 108 more horse power than 1981 Audi UR. (197 HP @ 5500 RPM). In normal driving conditions, 1987 Aston Martin V8 Volante should accelerate faster than 1981 Audi UR. With that said, vehicle weight also plays an important factor in acceleration. 1987 Aston Martin V8 Volante weights approximately 564 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.
Because 1981 Audi UR is four wheel drive (4WD), it will have significant more traction and grip than 1987 Aston Martin V8 Volante. 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, 1987 Aston Martin V8 Volante (447 Nm @ 4000 RPM) has 162 more torque (in Nm) than 1981 Audi UR. (285 Nm @ 3500 RPM). This means 1987 Aston Martin V8 Volante will have an easier job in driving up hills or pulling heavy equipment than 1981 Audi UR.
Compare all specifications:
| 1987 Aston Martin V8 Volante | 1981 Audi UR | |
| Make | Aston Martin | Audi |
| Model | V8 Volante | UR |
| Year Released | 1987 | 1981 |
| Engine Position | Front | Front |
| Engine Size | 5341 cc | 2144 cc |
| Engine Cylinders | 8 cylinders | 5 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 305 HP | 197 HP |
| Engine RPM | 5000 RPM | 5500 RPM |
| Torque | 447 Nm | 285 Nm |
| Torque RPM | 4000 RPM | 3500 RPM |
| Engine Bore Size | 100 mm | 79.5 mm |
| Engine Stroke Size | 85 mm | 86.4 mm |
| Engine Compression Ratio | 10.2:1 | 7.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1814 kg | 1250 kg |
| Vehicle Length | 4670 mm | 4430 mm |
| Vehicle Width | 1890 mm | 1690 mm |
| Vehicle Height | 1330 mm | 1360 mm |
| Wheelbase Size | 2620 mm | 2530 mm |
| Fuel Tank Capacity | 97 L | 70 L |
