2006 Audi A3 vs. 2008 Audi A4
To start off, 2008 Audi A4 is newer by 2 year(s). Which means there will be less support and parts availability for 2006 Audi A3. In addition, the cost of maintenance, including insurance, on 2006 Audi A3 would be higher. At 2,975 cc (6 cylinders), 2008 Audi A4 is equipped with a bigger engine. In terms of performance, 2008 Audi A4 (217 HP @ 6300 RPM) has 79 more horse power than 2006 Audi A3. (138 HP @ 4000 RPM) In normal driving conditions, 2008 Audi A4 should accelerate faster than 2006 Audi A3. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi A4 weights approximately 270 kg more than 2006 Audi A3. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or 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, 2006 Audi A3 (320 Nm @ 1750 RPM) has 20 more torque (in Nm) than 2008 Audi A4. (300 Nm @ 3200 RPM). This means 2006 Audi A3 will have an easier job in driving up hills or pulling heavy equipment than 2008 Audi A4.
Compare all specifications:
| 2006 Audi A3 | 2008 Audi A4 | |
| Make | Audi | Audi |
| Model | A3 | A4 |
| Year Released | 2006 | 2008 |
| Body Type | Hatchback | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 1967 cc | 2975 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 138 HP | 217 HP |
| Engine RPM | 4000 RPM | 6300 RPM |
| Torque | 320 Nm | 300 Nm |
| Torque RPM | 1750 RPM | 3200 RPM |
| Engine Bore Size | 81 mm | 82.5 mm |
| Engine Stroke Size | 95.5 mm | 92.8 mm |
| Engine Compression Ratio | 18.0:1 | 11.0:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 205 km/hour | 236 km/hour |
| Acceleration 0-100mph | 9.5 seconds | 8.9 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 3 doors | 5 doors |
| Vehicle Weight | 1340 kg | 1610 kg |
| Vehicle Length | 4210 mm | 4550 mm |
| Vehicle Width | 1770 mm | 1780 mm |
| Vehicle Height | 1430 mm | 1430 mm |
| Wheelbase Size | 2580 mm | 2660 mm |
| Fuel Consumption Overall | 5.8 L/100km | 10.9 L/100km |
| Fuel Tank Capacity | 55 L | 66 L |
