2005 Audi S4 vs. 2006 Smart ForFour
To start off, 2006 Smart ForFour is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Audi S4. In addition, the cost of maintenance, including insurance, on 2005 Audi S4 would be higher. At 4,161 cc (8 cylinders), 2005 Audi S4 is equipped with a bigger engine. In terms of performance, 2005 Audi S4 (340 HP @ 6300 RPM) has 232 more horse power than 2006 Smart ForFour. (108 HP @ 6000 RPM). In normal driving conditions, 2005 Audi S4 should accelerate faster than 2006 Smart ForFour. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S4 weights approximately 862 kg more than 2006 Smart ForFour. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2005 Audi S4 (410 Nm) has 265 more torque (in Nm) than 2006 Smart ForFour. (145 Nm). This means 2005 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2006 Smart ForFour.
Compare all specifications:
| 2005 Audi S4 | 2006 Smart ForFour | |
| Make | Audi | Smart |
| Model | S4 | ForFour |
| Year Released | 2005 | 2006 |
| Body Type | Convertible | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 4161 cc | 1499 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 340 HP | 108 HP |
| Engine RPM | 6300 RPM | 6000 RPM |
| Torque | 410 Nm | 145 Nm |
| Engine Bore Size | 85 mm | 75.5 mm |
| Engine Stroke Size | 93 mm | 84.8 mm |
| Engine Compression Ratio | 11.0:1 | 10.5:1 |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1840 kg | 978 kg |
| Vehicle Length | 4580 mm | 3760 mm |
| Vehicle Width | 1780 mm | 1690 mm |
| Vehicle Height | 1400 mm | 1460 mm |
| Wheelbase Size | 2660 mm | 2510 mm |
| Fuel Consumption Overall | 11.8 L/100km | 5.9 L/100km |
| Fuel Tank Capacity | 63 L | 47 L |
