1981 Audi UR vs. 1964 Porsche 911
To start off, 1981 Audi UR is newer by 17 year(s). Which means there will be less support and parts availability for 1964 Porsche 911. In addition, the cost of maintenance, including insurance, on 1964 Porsche 911 would be higher. At 2,144 cc (5 cylinders), 1981 Audi UR is equipped with a bigger engine. In terms of performance, 1981 Audi UR (197 HP @ 5500 RPM) has 68 more horse power than 1964 Porsche 911. (129 HP @ 6100 RPM). In normal driving conditions, 1981 Audi UR should accelerate faster than 1964 Porsche 911. With that said, vehicle weight also plays an important factor in acceleration. 1981 Audi UR weights approximately 210 kg more than 1964 Porsche 911. 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 1964 Porsche 911. 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, 1981 Audi UR (285 Nm @ 3500 RPM) has 107 more torque (in Nm) than 1964 Porsche 911. (178 Nm @ 4200 RPM). This means 1981 Audi UR will have an easier job in driving up hills or pulling heavy equipment than 1964 Porsche 911.
Compare all specifications:
| 1981 Audi UR | 1964 Porsche 911 | |
| Make | Audi | Porsche |
| Model | UR | 911 |
| Year Released | 1981 | 1964 |
| Engine Position | Front | Rear |
| Engine Size | 2144 cc | 1991 cc |
| Engine Cylinders | 5 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 197 HP | 129 HP |
| Engine RPM | 5500 RPM | 6100 RPM |
| Torque | 285 Nm | 178 Nm |
| Torque RPM | 3500 RPM | 4200 RPM |
| Engine Bore Size | 79.5 mm | 80.1 mm |
| Engine Stroke Size | 86.4 mm | 66 mm |
| Engine Compression Ratio | 7.0:1 | 9.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1250 kg | 1040 kg |
| Vehicle Length | 4430 mm | 4170 mm |
| Vehicle Width | 1690 mm | 1620 mm |
| Vehicle Height | 1360 mm | 1330 mm |
| Wheelbase Size | 2530 mm | 2190 mm |
| Fuel Tank Capacity | 70 L | 61 L |
