2008 Audi S5 vs. 2006 Smart Roadster
To start off, 2008 Audi S5 is newer by 2 year(s). Which means there will be less support and parts availability for 2006 Smart Roadster. In addition, the cost of maintenance, including insurance, on 2006 Smart Roadster would be higher. At 4,163 cc (8 cylinders), 2008 Audi S5 is equipped with a bigger engine. In terms of performance, 2008 Audi S5 (354 HP @ 6800 RPM) has 254 more horse power than 2006 Smart Roadster. (100 HP @ 5250 RPM). In normal driving conditions, 2008 Audi S5 should accelerate faster than 2006 Smart Roadster. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi S5 weights approximately 795 kg more than 2006 Smart Roadster. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 Audi S5 is four wheel drive (4WD), it will have significant more traction and grip than 2006 Smart Roadster. In wet, icy, snow, or gravel driving conditions, 2008 Audi S5 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, 2008 Audi S5 (441 Nm @ 3500 RPM) has 311 more torque (in Nm) than 2006 Smart Roadster. (130 Nm @ 2500 RPM). This means 2008 Audi S5 will have an easier job in driving up hills or pulling heavy equipment than 2006 Smart Roadster.
Compare all specifications:
| 2008 Audi S5 | 2006 Smart Roadster | |
| Make | Audi | Smart |
| Model | S5 | Roadster |
| Year Released | 2008 | 2006 |
| Body Type | Coupe | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 4163 cc | 696 cc |
| Engine Cylinders | 8 cylinders | 3 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 354 HP | 100 HP |
| Engine RPM | 6800 RPM | 5250 RPM |
| Torque | 441 Nm | 130 Nm |
| Torque RPM | 3500 RPM | 2500 RPM |
| Engine Bore Size | 84.5 mm | 66.5 mm |
| Engine Stroke Size | 92.8 mm | 67 mm |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 249 km/hour | 195 km/hour |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1765 kg | 970 kg |
| Vehicle Length | 4640 mm | 3430 mm |
| Vehicle Width | 1990 mm | 1620 mm |
| Vehicle Height | 1380 mm | 1200 mm |
| Wheelbase Size | 2760 mm | 2370 mm |
| Fuel Consumption Overall | 7.8 L/100km | 5.3 L/100km |
| Fuel Tank Capacity | 63 L | 35 L |
