1981 Audi UR vs. 1999 Mercedes-Benz SLK
To start off, 1999 Mercedes-Benz SLK 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 3,199 cc (6 cylinders), 1999 Mercedes-Benz SLK is equipped with a bigger engine. In terms of performance, 1999 Mercedes-Benz SLK (215 HP @ 5700 RPM) has 18 more horse power than 1981 Audi UR. (197 HP @ 5500 RPM) In normal driving conditions, 1999 Mercedes-Benz SLK should accelerate faster than 1981 Audi UR. With that said, vehicle weight also plays an important factor in acceleration. 1999 Mercedes-Benz SLK weights approximately 80 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 Mercedes-Benz SLK. 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 Mercedes-Benz SLK (316 Nm @ 3000 RPM) has 31 more torque (in Nm) than 1981 Audi UR. (285 Nm @ 3500 RPM). This means 1999 Mercedes-Benz SLK will have an easier job in driving up hills or pulling heavy equipment than 1981 Audi UR. 1999 Mercedes-Benz SLK 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. 1999 Mercedes-Benz SLK will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1981 Audi UR | 1999 Mercedes-Benz SLK | |
| Make | Audi | Mercedes-Benz |
| Model | UR | SLK |
| Year Released | 1981 | 1999 |
| Engine Position | Front | Front |
| Engine Size | 2144 cc | 3199 cc |
| Engine Cylinders | 5 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 3 valves |
| Horse Power | 197 HP | 215 HP |
| Engine RPM | 5500 RPM | 5700 RPM |
| Torque | 285 Nm | 316 Nm |
| Torque RPM | 3500 RPM | 3000 RPM |
| Engine Bore Size | 79.5 mm | 89.9 mm |
| Engine Stroke Size | 86.4 mm | 84 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1250 kg | 1330 kg |
| Vehicle Length | 4430 mm | 4000 mm |
| Vehicle Width | 1690 mm | 1720 mm |
| Vehicle Height | 1360 mm | 1280 mm |
| Wheelbase Size | 2530 mm | 2410 mm |
| Fuel Tank Capacity | 70 L | 60 L |
