2009 Audi A8 vs. 2009 Audi A3
To start off, both 2009 Audi A8 and 2009 Audi A3 were released in the same year (2009). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 4,172 cc, 2009 Audi A8 is equipped with a bigger engine. In terms of performance, 2009 Audi A8 (329 HP @ 6500 RPM) has 191 more horse power than 2009 Audi A3. (138 HP @ 4000 RPM). In normal driving conditions, 2009 Audi A8 should accelerate faster than 2009 Audi A3. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A8 weights approximately 350 kg more than 2009 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 (431 Nm @ 3500 RPM) has 111 more torque (in Nm) than 2009 Audi A3. (320 Nm @ 1750 RPM). This means 2009 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A3.
Compare all specifications:
| 2009 Audi A8 | 2009 Audi A3 | |
| Make | Audi | Audi |
| Model | A8 | A3 |
| Year Released | 2009 | 2009 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 1968 cc |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 329 HP | 138 HP |
| Engine RPM | 6500 RPM | 4000 RPM |
| Torque | 431 Nm | 320 Nm |
| Torque RPM | 3500 RPM | 1750 RPM |
| Engine Bore Size | 84.5 mm | 81 mm |
| Engine Stroke Size | 93 mm | 95.5 mm |
| Fuel Type | Gasoline | Diesel |
| Top Speed | 250 km/hour | 205 km/hour |
| Acceleration 0-100mph | 6.3 seconds | 9.7 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1855 kg | 1505 kg |
| Vehicle Length | 5060 mm | 4220 mm |
| Vehicle Width | 1900 mm | 1770 mm |
| Vehicle Height | 1450 mm | 1430 mm |
| Wheelbase Size | 2950 mm | 2580 mm |
| Fuel Consumption Overall | 8.8 L/100km | 5.8 L/100km |
| Fuel Tank Capacity | 90 L | 60 L |
