2009 Audi A4 vs. 2009 Audi A3
To start off, both 2009 Audi A4 and 2009 Audi A3 were released in the same year (2009). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 1,983 cc (4 cylinders), 2009 Audi A4 is equipped with a bigger engine. In terms of performance, 2009 Audi A4 (200 HP @ 5100 RPM) has 62 more horse power than 2009 Audi A3. (138 HP @ 4000 RPM). In normal driving conditions, 2009 Audi A4 should accelerate faster than 2009 Audi A3. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A3 weights approximately 370 kg more than 2009 Audi A4.
Because 2009 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, 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 A3 (320 Nm @ 1750 RPM) has 39 more torque (in Nm) than 2009 Audi A4. (281 Nm @ 1800 RPM). This means 2009 Audi A3 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A4.
Compare all specifications:
| 2009 Audi A4 | 2009 Audi A3 | |
| Make | Audi | Audi |
| Model | A4 | A3 |
| Year Released | 2009 | 2009 |
| Body Type | Convertible | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1983 cc | 1968 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 200 HP | 138 HP |
| Engine RPM | 5100 RPM | 4000 RPM |
| Torque | 281 Nm | 320 Nm |
| Torque RPM | 1800 RPM | 1750 RPM |
| Engine Bore Size | 82.5 mm | 81 mm |
| Engine Stroke Size | 92.8 mm | 95.5 mm |
| Fuel Type | Gasoline | Diesel |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 930 kg | 1300 kg |
| Vehicle Length | 4580 mm | 4290 mm |
| Vehicle Width | 1780 mm | 1770 mm |
| Vehicle Height | 1400 mm | 1430 mm |
| Wheelbase Size | 2660 mm | 2580 mm |
| Fuel Consumption Overall | 10.2 L/100km | 5.7 L/100km |
| Fuel Tank Capacity | 34 L | 55 L |
