2009 Audi A3 vs. 2006 Audi A4
To start off, 2009 Audi A3 is newer by 3 year(s). Which means there will be less support and parts availability for 2006 Audi A4. In addition, the cost of maintenance, including insurance, on 2006 Audi A4 would be higher. At 1,968 cc (4 cylinders), 2009 Audi A3 is equipped with a bigger engine. In terms of performance, 2009 Audi A3 (138 HP @ 4000 RPM) has 24 more horse power than 2006 Audi A4. (114 HP @ 4000 RPM). In normal driving conditions, 2009 Audi A3 should accelerate faster than 2006 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi A4 weights approximately 645 kg more than 2009 Audi A3.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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 A3 (320 Nm @ 2500 RPM) has 35 more torque (in Nm) than 2006 Audi A4. (285 Nm @ 1900 RPM). This means 2009 Audi A3 will have an easier job in driving up hills or pulling heavy equipment than 2006 Audi A4.
Compare all specifications:
| 2009 Audi A3 | 2006 Audi A4 | |
| Make | Audi | Audi |
| Model | A3 | A4 |
| Year Released | 2009 | 2006 |
| Body Type | Hatchback | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 1968 cc | 1896 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 138 HP | 114 HP |
| Engine RPM | 4000 RPM | 4000 RPM |
| Torque | 320 Nm | 285 Nm |
| Torque RPM | 2500 RPM | 1900 RPM |
| Engine Bore Size | 81.1 mm | 79.5 mm |
| Engine Stroke Size | 95.5 mm | 95.5 mm |
| Engine Compression Ratio | 18.0:1 | 19.0:1 |
| Fuel Type | Diesel | Diesel |
| Acceleration 0-100mph | 9.5 seconds | 11.5 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 3 doors | 5 doors |
| Vehicle Weight | 895 kg | 1540 kg |
| Vehicle Length | 4210 mm | 4550 mm |
| Vehicle Width | 1960 mm | 1780 mm |
| Vehicle Height | 1430 mm | 1430 mm |
| Wheelbase Size | 2580 mm | 2660 mm |
| Fuel Consumption Overall | 6.8 L/100km | 5.7 L/100km |
| Fuel Tank Capacity | 55 L | 70 L |
