1981 Audi UR vs. 2009 Dodge Viper
To start off, 2009 Dodge Viper 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 8,285 cc (10 cylinders), 2009 Dodge Viper is equipped with a bigger engine. In terms of performance, 2009 Dodge Viper (499 HP @ 5600 RPM) has 302 more horse power than 1981 Audi UR. (197 HP @ 5500 RPM) In normal driving conditions, 2009 Dodge Viper should accelerate faster than 1981 Audi UR. With that said, vehicle weight also plays an important factor in acceleration. 2009 Dodge Viper weights approximately 352 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 2009 Dodge Viper. 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 Dodge Viper (711 Nm @ 4200 RPM) has 426 more torque (in Nm) than 1981 Audi UR. (285 Nm @ 3500 RPM). This means 2009 Dodge Viper will have an easier job in driving up hills or pulling heavy equipment than 1981 Audi UR.
Compare all specifications:
| 1981 Audi UR | 2009 Dodge Viper | |
| Make | Audi | Dodge |
| Model | UR | Viper |
| Year Released | 1981 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 2144 cc | 8285 cc |
| Engine Cylinders | 5 cylinders | 10 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 197 HP | 499 HP |
| Engine RPM | 5500 RPM | 5600 RPM |
| Torque | 285 Nm | 711 Nm |
| Torque RPM | 3500 RPM | 4200 RPM |
| Engine Bore Size | 79.5 mm | 102.4 mm |
| Engine Stroke Size | 86.4 mm | 100.6 mm |
| Engine Compression Ratio | 7.0:1 | 10.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1250 kg | 1602 kg |
| Vehicle Length | 4430 mm | 4470 mm |
| Vehicle Width | 1690 mm | 1950 mm |
| Vehicle Height | 1360 mm | 1220 mm |
| Wheelbase Size | 2530 mm | 2520 mm |
| Fuel Tank Capacity | 70 L | 70 L |
