1981 Audi UR vs. 2003 Smart Roadster
To start off, 2003 Smart Roadster is newer by 22 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 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 97 more horse power than 2003 Smart Roadster. (100 HP @ 5250 RPM). In normal driving conditions, 1981 Audi UR should accelerate faster than 2003 Smart Roadster.
Because 1981 Audi UR is four wheel drive (4WD), it will have significant more traction and grip than 2003 Smart Roadster. 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 155 more torque (in Nm) than 2003 Smart Roadster. (130 Nm @ 2500 RPM). This means 1981 Audi UR will have an easier job in driving up hills or pulling heavy equipment than 2003 Smart Roadster.
Compare all specifications:
| 1981 Audi UR | 2003 Smart Roadster | |
| Make | Audi | Smart |
| Model | UR | Roadster |
| Year Released | 1981 | 2003 |
| Engine Position | Front | Rear |
| Engine Size | 2144 cc | 698 cc |
| Engine Cylinders | 5 cylinders | 3 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 197 HP | 100 HP |
| Engine RPM | 5500 RPM | 5250 RPM |
| Torque | 285 Nm | 130 Nm |
| Torque RPM | 3500 RPM | 2500 RPM |
| Engine Compression Ratio | 7.0:1 | 9.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Length | 4430 mm | 3430 mm |
| Vehicle Width | 1690 mm | 1620 mm |
| Vehicle Height | 1360 mm | 1200 mm |
| Wheelbase Size | 2530 mm | 2370 mm |
| Fuel Tank Capacity | 70 L | 35 L |
