2004 Audi A3 vs. 2005 Audi A8
To start off, 2005 Audi A8 is newer by 1 year(s). Which means there will be less support and parts availability for 2004 Audi A3. In addition, the cost of maintenance, including insurance, on 2004 Audi A3 would be higher. At 5,998 cc, 2005 Audi A8 is equipped with a bigger engine. In terms of performance, 2005 Audi A8 (450 HP @ 6300 RPM) has 346 more horse power than 2004 Audi A3. (104 HP @ 4000 RPM) In normal driving conditions, 2005 Audi A8 should accelerate faster than 2004 Audi A3. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A8 weights approximately 805 kg more than 2004 Audi A3. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2004 Audi A3. In wet, icy, snow, or gravel driving conditions, 2005 Audi A8 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, 2005 Audi A8 (560 Nm) has 309 more torque (in Nm) than 2004 Audi A3. (251 Nm). This means 2005 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi A3.
Compare all specifications:
| 2004 Audi A3 | 2005 Audi A8 | |
| Make | Audi | Audi |
| Model | A3 | A8 |
| Year Released | 2004 | 2005 |
| Body Type | Hatchback | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1984 cc | 5998 cc |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 104 HP | 450 HP |
| Engine RPM | 4000 RPM | 6300 RPM |
| Torque | 251 Nm | 560 Nm |
| Engine Bore Size | 79.5 mm | 84.1 mm |
| Engine Stroke Size | 95.5 mm | 90 mm |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1340 kg | 2145 kg |
| Vehicle Length | 4290 mm | 5200 mm |
| Vehicle Width | 1770 mm | 1900 mm |
| Vehicle Height | 1430 mm | 1460 mm |
| Wheelbase Size | 2580 mm | 3080 mm |
| Fuel Consumption | 4.2 L/100km | 11.2 L/100km |
| Fuel Consumption City | 6.6 L/100km | 15.7 L/100km |
| Fuel Consumption Overall | 5.1 L/100km | 13.8 L/100km |
| Fuel Tank Capacity | 55 L | 90 L |
