2007 Audi A3 vs. 2003 Audi A8
To start off, 2007 Audi A3 is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Audi A8. In addition, the cost of maintenance, including insurance, on 2003 Audi A8 would be higher. At 2,976 cc (6 cylinders), 2003 Audi A8 is equipped with a bigger engine. In terms of performance, 2003 Audi A8 (217 HP @ 6300 RPM) has 113 more horse power than 2007 Audi A3. (104 HP @ 4000 RPM) In normal driving conditions, 2003 Audi A8 should accelerate faster than 2007 Audi A3. With that said, vehicle weight also plays an important factor in acceleration. 2003 Audi A8 weights approximately 228 kg more than 2007 Audi A3. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2003 Audi A8 (300 Nm @ 3200 RPM) has 50 more torque (in Nm) than 2007 Audi A3. (250 Nm @ 1900 RPM). This means 2003 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi A3.
Compare all specifications:
| 2007 Audi A3 | 2003 Audi A8 | |
| Make | Audi | Audi |
| Model | A3 | A8 |
| Year Released | 2007 | 2003 |
| Body Type | Hatchback | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1896 cc | 2976 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 5 valves |
| Horse Power | 104 HP | 217 HP |
| Engine RPM | 4000 RPM | 6300 RPM |
| Torque | 250 Nm | 300 Nm |
| Torque RPM | 1900 RPM | 3200 RPM |
| Engine Bore Size | 79.5 mm | 82.5 mm |
| Engine Stroke Size | 95.5 mm | 92.8 mm |
| Engine Compression Ratio | 19.0:1 | 11.0:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 3 doors | 4 doors |
| Vehicle Weight | 1362 kg | 1590 kg |
| Vehicle Length | 4210 mm | 5060 mm |
| Vehicle Width | 1770 mm | 1900 mm |
| Vehicle Height | 1430 mm | 1450 mm |
| Wheelbase Size | 2580 mm | 2580 mm |
| Fuel Consumption Overall | 5.1 L/100km | 12.8 L/100km |
| Fuel Tank Capacity | 55 L | 70 L |
