2009 Audi Q7 vs. 2007 Audi A3
To start off, 2009 Audi Q7 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 4,132 cc (8 cylinders), 2009 Audi Q7 is equipped with a bigger engine. In terms of performance, 2009 Audi Q7 (322 HP @ 3750 RPM) has 174 more horse power than 2007 Audi A3. (148 HP @ 6000 RPM). In normal driving conditions, 2009 Audi Q7 should accelerate faster than 2007 Audi A3. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi Q7 weights approximately 1075 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.
Because 2009 Audi Q7 is four wheel drive (4WD), it will have significant more traction and grip than 2007 Audi A3. In wet, icy, snow, or gravel driving conditions, 2009 Audi Q7 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, 2009 Audi Q7 (760 Nm @ 1800 RPM) has 560 more torque (in Nm) than 2007 Audi A3. (200 Nm @ 3500 RPM). This means 2009 Audi Q7 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi A3.
Compare all specifications:
| 2009 Audi Q7 | 2007 Audi A3 | |
| Make | Audi | Audi |
| Model | Q7 | A3 |
| Year Released | 2009 | 2007 |
| Body Type | SUV | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 4132 cc | 1984 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 322 HP | 148 HP |
| Engine RPM | 3750 RPM | 6000 RPM |
| Torque | 760 Nm | 200 Nm |
| Torque RPM | 1800 RPM | 3500 RPM |
| Engine Bore Size | 83 mm | 82.5 mm |
| Engine Stroke Size | 95.5 mm | 92.8 mm |
| Engine Compression Ratio | 16.5:1 | 11.5:1 |
| Fuel Type | Diesel | Gasoline |
| Top Speed | 236 km/hour | 209 km/hour |
| Acceleration 0-100mph | 6.4 seconds | 9.7 seconds |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Automatic |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 2420 kg | 1345 kg |
| Vehicle Length | 5090 mm | 4290 mm |
| Vehicle Width | 1990 mm | 1770 mm |
| Vehicle Height | 1780 mm | 1430 mm |
| Wheelbase Size | 3010 mm | 2580 mm |
| Fuel Consumption Overall | 11.1 L/100km | 7.8 L/100km |
| Fuel Tank Capacity | 100 L | 55 L |
