1981 Audi UR vs. 1999 Vector M12
To start off, 1999 Vector M12 is newer by 18 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 5,707 cc (12 cylinders), 1999 Vector M12 is equipped with a bigger engine. In terms of performance, 1999 Vector M12 (484 HP @ 6800 RPM) has 287 more horse power than 1981 Audi UR. (197 HP @ 5500 RPM) In normal driving conditions, 1999 Vector M12 should accelerate faster than 1981 Audi UR. With that said, vehicle weight also plays an important factor in acceleration. 1999 Vector M12 weights approximately 380 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 1999 Vector M12. 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, 1999 Vector M12 (576 Nm @ 5200 RPM) has 291 more torque (in Nm) than 1981 Audi UR. (285 Nm @ 3500 RPM). This means 1999 Vector M12 will have an easier job in driving up hills or pulling heavy equipment than 1981 Audi UR.
Compare all specifications:
| 1981 Audi UR | 1999 Vector M12 | |
| Make | Audi | Vector |
| Model | UR | M12 |
| Year Released | 1981 | 1999 |
| Engine Position | Front | Middle |
| Engine Size | 2144 cc | 5707 cc |
| Engine Cylinders | 5 cylinders | 12 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 197 HP | 484 HP |
| Engine RPM | 5500 RPM | 6800 RPM |
| Torque | 285 Nm | 576 Nm |
| Torque RPM | 3500 RPM | 5200 RPM |
| 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 | 1630 kg |
| Vehicle Length | 4430 mm | 4790 mm |
| Vehicle Width | 1690 mm | 2030 mm |
| Vehicle Height | 1360 mm | 1140 mm |
| Wheelbase Size | 2530 mm | 2750 mm |
