1981 Audi UR vs. 2009 Mercedes-Benz CLS
To start off, 2009 Mercedes-Benz CLS 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 6,207 cc (8 cylinders), 2009 Mercedes-Benz CLS is equipped with a bigger engine. In terms of performance, 2009 Mercedes-Benz CLS (507 HP @ 6800 RPM) has 310 more horse power than 1981 Audi UR. (197 HP @ 5500 RPM) In normal driving conditions, 2009 Mercedes-Benz CLS should accelerate faster than 1981 Audi UR. With that said, vehicle weight also plays an important factor in acceleration. 2009 Mercedes-Benz CLS weights approximately 655 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 Mercedes-Benz CLS. 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 Mercedes-Benz CLS (630 Nm @ 5200 RPM) has 345 more torque (in Nm) than 1981 Audi UR. (285 Nm @ 3500 RPM). This means 2009 Mercedes-Benz CLS will have an easier job in driving up hills or pulling heavy equipment than 1981 Audi UR. 2009 Mercedes-Benz CLS 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. 2009 Mercedes-Benz CLS will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1981 Audi UR | 2009 Mercedes-Benz CLS | |
| Make | Audi | Mercedes-Benz |
| Model | UR | CLS |
| Year Released | 1981 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 2144 cc | 6207 cc |
| Engine Cylinders | 5 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 197 HP | 507 HP |
| Engine RPM | 5500 RPM | 6800 RPM |
| Torque | 285 Nm | 630 Nm |
| Torque RPM | 3500 RPM | 5200 RPM |
| Engine Bore Size | 79.5 mm | 102.2 mm |
| Engine Stroke Size | 86.4 mm | 94.6 mm |
| Engine Compression Ratio | 7.0:1 | 11.3:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1250 kg | 1905 kg |
| Vehicle Length | 4430 mm | 4920 mm |
| Vehicle Width | 1690 mm | 1880 mm |
| Vehicle Height | 1360 mm | 1400 mm |
| Wheelbase Size | 2530 mm | 2860 mm |
| Fuel Tank Capacity | 70 L | 80 L |
