2009 Audi A8 vs. 2008 Audi A3
To start off, 2009 Audi A8 is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Audi A3. In addition, the cost of maintenance, including insurance, on 2008 Audi A3 would be higher. At 3,696 cc (8 cylinders), 2009 Audi A8 is equipped with a bigger engine. In terms of performance, 2009 Audi A8 (276 HP @ 6000 RPM) has 26 more horse power than 2008 Audi A3. (250 HP @ 6300 RPM). In normal driving conditions, 2009 Audi A8 should accelerate faster than 2008 Audi A3. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A8 weights approximately 315 kg more than 2008 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, 2009 Audi A8 (360 Nm @ 3750 RPM) has 40 more torque (in Nm) than 2008 Audi A3. (320 Nm @ 3200 RPM). This means 2009 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2008 Audi A3.
Compare all specifications:
| 2009 Audi A8 | 2008 Audi A3 | |
| Make | Audi | Audi |
| Model | A8 | A3 |
| Year Released | 2009 | 2008 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 3696 cc | 3196 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 276 HP | 250 HP |
| Engine RPM | 6000 RPM | 6300 RPM |
| Torque | 360 Nm | 320 Nm |
| Torque RPM | 3750 RPM | 3200 RPM |
| Engine Bore Size | 84.5 mm | 84.1 mm |
| Engine Stroke Size | 82.4 mm | 95.9 mm |
| Engine Compression Ratio | 11.0:1 | 11.3:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1770 kg | 1455 kg |
| Vehicle Length | 5060 mm | 4290 mm |
| Vehicle Width | 1900 mm | 1970 mm |
| Vehicle Height | 1450 mm | 1430 mm |
| Wheelbase Size | 2950 mm | 2580 mm |
| Fuel Consumption Overall | 11.7 L/100km | 11.2 L/100km |
| Fuel Tank Capacity | 90 L | 55 L |
