2005 Audi A4 vs. 2009 Audi A3
To start off, 2009 Audi A3 is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Audi A4. In addition, the cost of maintenance, including insurance, on 2005 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 10 more horse power than 2005 Audi A4. (128 HP @ 4000 RPM) In normal driving conditions, 2009 Audi A3 should accelerate faster than 2005 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A4 weights approximately 590 kg more than 2009 Audi A3.
Because 2005 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2009 Audi A3. In wet, icy, snow, or gravel driving conditions, 2005 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 A3 (320 Nm @ 2500 RPM) has 10 more torque (in Nm) than 2005 Audi A4. (310 Nm @ 1900 RPM). This means 2009 Audi A3 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A4.
Compare all specifications:
| 2005 Audi A4 | 2009 Audi A3 | |
| Make | Audi | Audi |
| Model | A4 | A3 |
| Year Released | 2005 | 2009 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1896 cc | 1968 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 128 HP | 138 HP |
| Engine RPM | 4000 RPM | 4000 RPM |
| Torque | 310 Nm | 320 Nm |
| Torque RPM | 1900 RPM | 2500 RPM |
| Engine Bore Size | 79.5 mm | 81.1 mm |
| Engine Stroke Size | 95.5 mm | 95.5 mm |
| Engine Compression Ratio | 19.0:1 | 18.0:1 |
| Fuel Type | Diesel | Diesel |
| Acceleration 0-100mph | 10.1 seconds | 9.5 seconds |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1485 kg | 895 kg |
| Vehicle Length | 4550 mm | 4210 mm |
| Vehicle Width | 1780 mm | 1960 mm |
| Vehicle Height | 1430 mm | 1430 mm |
| Wheelbase Size | 2580 mm | 2580 mm |
| Fuel Consumption Overall | 6.6 L/100km | 6.8 L/100km |
| Fuel Tank Capacity | 66 L | 55 L |
