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 4,133 cc (8 cylinders), 2009 Audi Q7 is equipped with a bigger engine. In terms of performance, 2009 Audi Q7 (322 HP @ 3750 RPM) has 125 more horse power than 2007 Audi A4. (197 HP @ 6000 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 968 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 480 more torque (in Nm) than 2007 Audi A4. (280 Nm @ 1800 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 | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 1984 cc | 4133 cc |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 197 HP | 322 HP |
| Engine RPM | 6000 RPM | 3750 RPM |
| Torque | 280 Nm | 760 Nm |
| Torque RPM | 1800 RPM | 2500 RPM |
| Engine Bore Size | 82.5 mm | 83 mm |
| Engine Stroke Size | 92.8 mm | 95.5 mm |
| Engine Compression Ratio | 10.5:1 | 16.5:1 |
| Fuel Type | Gasoline | Diesel |
| Top Speed | 235 km/hour | 236 km/hour |
| Acceleration 0-100mph | 7.3 seconds | 6.4 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 7 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1452 kg | 2420 kg |
| Vehicle Length | 4590 mm | 5090 mm |
| Vehicle Width | 1780 mm | 2090 mm |
| Vehicle Height | 1430 mm | 1780 mm |
| Wheelbase Size | 2650 mm | 3010 mm |
| Fuel Consumption Overall | 8.1 L/100km | 11.1 L/100km |
| Fuel Tank Capacity | 70 L | 100 L |
