1981 Audi UR vs. 2007 BMW X5
To start off, 2007 BMW X5 is newer by 26 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 4,398 cc (8 cylinders), 2007 BMW X5 is equipped with a bigger engine. In terms of performance, 2007 BMW X5 (283 HP @ 3600 RPM) has 86 more horse power than 1981 Audi UR. (197 HP @ 5800 RPM) In normal driving conditions, 2007 BMW X5 should accelerate faster than 1981 Audi UR. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW X5 weights approximately 880 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.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear wheel drive vehicles. 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, 2007 BMW X5 (440 Nm @ 5400 RPM) has 170 more torque (in Nm) than 1981 Audi UR. (270 Nm @ 3000 RPM). This means 2007 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 1981 Audi UR. 2007 BMW X5 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. 2007 BMW X5 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1981 Audi UR | 2007 BMW X5 | |
| Make | Audi | BMW |
| Model | UR | X5 |
| Year Released | 1981 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 2226 cc | 4398 cc |
| Engine Cylinders | 5 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 197 HP | 283 HP |
| Engine RPM | 5800 RPM | 3600 RPM |
| Torque | 270 Nm | 440 Nm |
| Torque RPM | 3000 RPM | 5400 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1300 kg | 2180 kg |
| Vehicle Length | 4430 mm | 4670 mm |
| Vehicle Width | 1690 mm | 1880 mm |
| Vehicle Height | 1390 mm | 1710 mm |
| Wheelbase Size | 2530 mm | 2830 mm |
| Fuel Tank Capacity | 58 L | 93 L |
