2009 Audi A4 vs. 2005 Smart ForFour
To start off, 2009 Audi A4 is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Smart ForFour. In addition, the cost of maintenance, including insurance, on 2005 Smart ForFour would be higher. At 2,965 cc (6 cylinders), 2009 Audi A4 is equipped with a bigger engine. In terms of performance, 2009 Audi A4 (237 HP @ 4000 RPM) has 143 more horse power than 2005 Smart ForFour. (94 HP @ 6000 RPM). In normal driving conditions, 2009 Audi A4 should accelerate faster than 2005 Smart ForFour. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A4 weights approximately 725 kg more than 2005 Smart ForFour. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2005 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 (500 Nm @ 1500 RPM) has 375 more torque (in Nm) than 2005 Smart ForFour. (125 Nm @ 4000 RPM). This means 2009 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2005 Smart ForFour. 2005 Smart ForFour has automatic transmission and 2009 Audi A4 has manual transmission. 2009 Audi A4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Smart ForFour will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Audi A4 | 2005 Smart ForFour | |
| Make | Audi | Smart |
| Model | A4 | ForFour |
| Year Released | 2009 | 2005 |
| Body Type | Station Wagon | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2965 cc | 1332 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 237 HP | 94 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 500 Nm | 125 Nm |
| Torque RPM | 1500 RPM | 4000 RPM |
| Engine Bore Size | 83 mm | 75.5 mm |
| Engine Stroke Size | 91.4 mm | 75.4 mm |
| Engine Compression Ratio | 16.8:1 | 10.5:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 250 km/hour | 180 km/hour |
| Acceleration 0-100mph | 6.3 seconds | 11.1 seconds |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1695 kg | 970 kg |
| Vehicle Length | 4710 mm | 3760 mm |
| Vehicle Width | 1830 mm | 1690 mm |
| Vehicle Height | 1440 mm | 1460 mm |
| Wheelbase Size | 2810 mm | 2510 mm |
| Fuel Consumption Overall | 7.1 L/100km | 5.8 L/100km |
| Fuel Tank Capacity | 64 L | 47 L |
