2009 Audi A8 vs. 2007 Audi A3
To start off, 2009 Audi A8 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Audi A3. In addition, the cost of maintenance, including insurance, on 2007 Audi A3 would be higher. At 4,172 cc (8 cylinders), 2009 Audi A8 is equipped with a bigger engine. In terms of performance, 2009 Audi A8 (330 HP @ 6500 RPM) has 83 more horse power than 2007 Audi A3. (247 HP @ 6300 RPM). In normal driving conditions, 2009 Audi A8 should accelerate faster than 2007 Audi A3. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A8 weights approximately 355 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 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 (430 Nm @ 3500 RPM) has 110 more torque (in Nm) than 2007 Audi A3. (320 Nm @ 2500 RPM). This means 2009 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi A3. 2009 Audi A8 has automatic transmission and 2007 Audi A3 has manual transmission. 2007 Audi A3 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Audi A8 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Audi A8 | 2007 Audi A3 | |
| Make | Audi | Audi |
| Model | A8 | A3 |
| Year Released | 2009 | 2007 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 3189 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 330 HP | 247 HP |
| Engine RPM | 6500 RPM | 6300 RPM |
| Torque | 430 Nm | 320 Nm |
| Torque RPM | 3500 RPM | 2500 RPM |
| Engine Compression Ratio | 11.0:1 | 11.3:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 245 km/hour | 240 km/hour |
| Acceleration 0-100mph | 6.4 seconds | 6.5 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1910 kg | 1555 kg |
| Vehicle Length | 5190 mm | 4210 mm |
| Vehicle Width | 1900 mm | 1770 mm |
| Vehicle Height | 1460 mm | 1430 mm |
| Wheelbase Size | 3080 mm | 2580 mm |
| Fuel Consumption Overall | 11.9 L/100km | 10.6 L/100km |
| Fuel Tank Capacity | 90 L | 55 L |
