2009 Audi A4 vs. 2006 Smart ForFour
To start off, 2009 Audi A4 is newer by 3 year(s). Which means there will be less support and parts availability for 2006 Smart ForFour. In addition, the cost of maintenance, including insurance, on 2006 Smart ForFour would be higher. At 1,781 cc (4 cylinders), 2009 Audi A4 is equipped with a bigger engine. In terms of performance, 2009 Audi A4 (187 HP @ 5700 RPM) has 112 more horse power than 2006 Smart ForFour. (75 HP @ 6000 RPM). In normal driving conditions, 2009 Audi A4 should accelerate faster than 2006 Smart ForFour.
Because 2009 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2006 Smart ForFour. In wet, icy, snow, or gravel driving conditions, 2009 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, 2009 Audi A4 (240 Nm @ 1950 RPM) has 104 more torque (in Nm) than 2006 Smart ForFour. (136 Nm @ 3500 RPM). This means 2009 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2006 Smart ForFour.
Compare all specifications:
| 2009 Audi A4 | 2006 Smart ForFour | |
| Make | Audi | Smart |
| Model | A4 | ForFour |
| Year Released | 2009 | 2006 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1781 cc | 1123 cc |
| Engine Cylinders | 4 cylinders | 3 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 187 HP | 75 HP |
| Engine RPM | 5700 RPM | 6000 RPM |
| Torque | 240 Nm | 136 Nm |
| Torque RPM | 1950 RPM | 3500 RPM |
| Engine Compression Ratio | 9.3:1 | 10.5:1 |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Length | 4550 mm | 3760 mm |
| Vehicle Width | 1780 mm | 1690 mm |
| Vehicle Height | 1430 mm | 1460 mm |
| Wheelbase Size | 2660 mm | 2510 mm |
| Fuel Tank Capacity | 66 L | 22 L |
