2009 Audi Q7 vs. 2007 Audi A4
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 A4. In addition, the cost of maintenance, including insurance, on 2007 Audi A4 would be higher. At 4,133 cc (8 cylinders), 2009 Audi Q7 is equipped with a bigger engine. In terms of performance, 2009 Audi Q7 (322 HP @ 3750 RPM) has 192 more horse power than 2007 Audi A4. (130 HP @ 5700 RPM). In normal driving conditions, 2009 Audi Q7 should accelerate faster than 2007 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi Q7 weights approximately 1080 kg more than 2007 Audi A4. 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 A4. 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 @ 2500 RPM) has 565 more torque (in Nm) than 2007 Audi A4. (195 Nm @ 3300 RPM). This means 2009 Audi Q7 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi A4.
Compare all specifications:
| 2009 Audi Q7 | 2007 Audi A4 | |
| Make | Audi | Audi |
| Model | Q7 | A4 |
| Year Released | 2009 | 2007 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4133 cc | 1984 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 322 HP | 130 HP |
| Engine RPM | 3750 RPM | 5700 RPM |
| Torque | 760 Nm | 195 Nm |
| Torque RPM | 2500 RPM | 3300 RPM |
| Engine Compression Ratio | 16.5:1 | 10.3:1 |
| Fuel Type | Diesel | Gasoline |
| Top Speed | 236 km/hour | 205 km/hour |
| Acceleration 0-100mph | 6.4 seconds | 10.4 seconds |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 7 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 2420 kg | 1340 kg |
| Vehicle Length | 5090 mm | 4590 mm |
| Vehicle Width | 2090 mm | 1780 mm |
| Vehicle Height | 1780 mm | 1430 mm |
| Wheelbase Size | 3010 mm | 2650 mm |
| Fuel Consumption Overall | 11.1 L/100km | 7.9 L/100km |
| Fuel Tank Capacity | 100 L | 70 L |
