1981 Audi UR vs. 2009 BMW 550
To start off, 2009 BMW 550 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 4,799 cc, 2009 BMW 550 is equipped with a bigger engine. In terms of performance, 2009 BMW 550 (362 HP @ 6300 RPM) has 165 more horse power than 1981 Audi UR. (197 HP @ 5500 RPM) In normal driving conditions, 2009 BMW 550 should accelerate faster than 1981 Audi UR.
Because 1981 Audi UR is four wheel drive (4WD), it will have significant more traction and grip than 2009 BMW 550. 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 BMW 550 (491 Nm @ 3400 RPM) has 206 more torque (in Nm) than 1981 Audi UR. (285 Nm @ 3500 RPM). This means 2009 BMW 550 will have an easier job in driving up hills or pulling heavy equipment than 1981 Audi UR.
Compare all specifications:
| 1981 Audi UR | 2009 BMW 550 | |
| Make | Audi | BMW |
| Model | UR | 550 |
| Year Released | 1981 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 2144 cc | 4799 cc |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 197 HP | 362 HP |
| Engine RPM | 5500 RPM | 6300 RPM |
| Torque | 285 Nm | 491 Nm |
| Torque RPM | 3500 RPM | 3400 RPM |
| Engine Bore Size | 79.5 mm | 93 mm |
| Engine Stroke Size | 86.4 mm | 88.3 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Length | 4430 mm | 4850 mm |
| Vehicle Width | 1690 mm | 1470 mm |
| Vehicle Height | 1360 mm | 1850 mm |
| Wheelbase Size | 2530 mm | 2890 mm |
| Fuel Tank Capacity | 70 L | 70 L |
