2003 Audi A3 vs. 2009 Audi A8
To start off, 2009 Audi A8 is newer by 6 year(s). Which means there will be less support and parts availability for 2003 Audi A3. In addition, the cost of maintenance, including insurance, on 2003 Audi A3 would be higher. At 2,976 cc (6 cylinders), 2009 Audi A8 is equipped with a bigger engine. In terms of performance, 2009 Audi A8 (217 HP @ 6300 RPM) has 117 more horse power than 2003 Audi A3. (100 HP @ 5600 RPM) In normal driving conditions, 2009 Audi A8 should accelerate faster than 2003 Audi A3. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A8 weights approximately 465 kg more than 2003 Audi A3. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 Audi A3 is four wheel drive (4WD), it will have significant more traction and grip than 2009 Audi A8. In wet, icy, snow, or gravel driving conditions, 2003 Audi A3 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 A8 (300 Nm @ 8200 RPM) has 152 more torque (in Nm) than 2003 Audi A3. (148 Nm @ 3800 RPM). This means 2009 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2003 Audi A3.
Compare all specifications:
| 2003 Audi A3 | 2009 Audi A8 | |
| Make | Audi | Audi |
| Model | A3 | A8 |
| Year Released | 2003 | 2009 |
| Body Type | Hatchback | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1595 cc | 2976 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 100 HP | 217 HP |
| Engine RPM | 5600 RPM | 6300 RPM |
| Torque | 148 Nm | 300 Nm |
| Torque RPM | 3800 RPM | 8200 RPM |
| Engine Compression Ratio | 10.3:1 | 11.0:1 |
| Acceleration 0-100mph | 11.9 seconds | 7.9 seconds |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 3 doors | 4 doors |
| Vehicle Weight | 1205 kg | 1670 kg |
| Vehicle Length | 4210 mm | 5060 mm |
| Vehicle Width | 1770 mm | 1900 mm |
| Vehicle Height | 1430 mm | 1450 mm |
| Wheelbase Size | 2580 mm | 2950 mm |
| Fuel Consumption Overall | 7 L/100km | 9.6 L/100km |
| Fuel Tank Capacity | 55 L | 90 L |
