2005 Audi A4 vs. 2000 Smart Roadster
To start off, 2005 Audi A4 is newer by 5 year(s). Which means there will be less support and parts availability for 2000 Smart Roadster. In addition, the cost of maintenance, including insurance, on 2000 Smart Roadster would be higher. At 1,781 cc (4 cylinders), 2005 Audi A4 is equipped with a bigger engine. In terms of performance, 2005 Audi A4 (180 HP @ 5700 RPM) has 99 more horse power than 2000 Smart Roadster. (81 HP @ 5250 RPM). In normal driving conditions, 2005 Audi A4 should accelerate faster than 2000 Smart Roadster. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A4 weights approximately 590 kg more than 2000 Smart Roadster. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2000 Smart Roadster. In wet, icy, snow, or gravel driving conditions, 2005 Audi A4 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, 2005 Audi A4 (240 Nm @ 1950 RPM) has 130 more torque (in Nm) than 2000 Smart Roadster. (110 Nm @ 2250 RPM). This means 2005 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2000 Smart Roadster.
Compare all specifications:
| 2005 Audi A4 | 2000 Smart Roadster | |
| Make | Audi | Smart |
| Model | A4 | Roadster |
| Year Released | 2005 | 2000 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 1781 cc | 698 cc |
| Engine Cylinders | 4 cylinders | 3 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 5 valves | 2 valves |
| Horse Power | 180 HP | 81 HP |
| Engine RPM | 5700 RPM | 5250 RPM |
| Torque | 240 Nm | 110 Nm |
| Torque RPM | 1950 RPM | 2250 RPM |
| Engine Bore Size | 81 mm | 66.5 mm |
| Engine Stroke Size | 86.4 mm | 67 mm |
| Engine Compression Ratio | 9.3:1 | 9.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 234 km/hour | 180 km/hour |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1475 kg | 885 kg |
| Vehicle Length | 4550 mm | 3430 mm |
| Vehicle Width | 1770 mm | 1620 mm |
| Vehicle Height | 1430 mm | 1200 mm |
| Wheelbase Size | 2660 mm | 2370 mm |
| Fuel Consumption Overall | 10 L/100km | 5.1 L/100km |
