2007 Audi A4 vs. 2009 Audi Q7
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 4,163 cc (8 cylinders), 2009 Audi Q7 is equipped with a bigger engine. In terms of performance, 2009 Audi Q7 (345 HP @ 6800 RPM) has 93 more horse power than 2007 Audi A4. (252 HP @ 6500 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 614 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.
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 Q7 (440 Nm @ 3500 RPM) has 110 more torque (in Nm) than 2007 Audi A4. (330 Nm @ 3250 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:
| 2007 Audi A4 | 2009 Audi Q7 | |
| Make | Audi | Audi |
| Model | A4 | Q7 |
| Year Released | 2007 | 2009 |
| Body Type | Station Wagon | SUV |
| Engine Position | Front | Front |
| Engine Size | 3123 cc | 4163 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 252 HP | 345 HP |
| Engine RPM | 6500 RPM | 6800 RPM |
| Torque | 330 Nm | 440 Nm |
| Torque RPM | 3250 RPM | 3500 RPM |
| Engine Bore Size | 84.5 mm | 84.5 mm |
| Engine Stroke Size | 92.8 mm | 92.8 mm |
| Engine Compression Ratio | 12.5:1 | 12.5:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 247 km/hour | 244 km/hour |
| Acceleration 0-100mph | 7.1 seconds | 7.4 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1630 kg | 2244 kg |
| Vehicle Length | 4590 mm | 5090 mm |
| Vehicle Width | 1780 mm | 1990 mm |
| Vehicle Height | 1430 mm | 1740 mm |
| Wheelbase Size | 2650 mm | 3010 mm |
| Fuel Consumption Overall | 10.7 L/100km | 13.6 L/100km |
| Fuel Tank Capacity | 63 L | 100 L |
