2009 Audi Q7 vs. 2005 Audi A4
To start off, 2009 Audi Q7 is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Audi A4. In addition, the cost of maintenance, including insurance, on 2005 Audi A4 would be higher. At 5,934 cc (12 cylinders), 2009 Audi Q7 is equipped with a bigger engine. In terms of performance, 2009 Audi Q7 (494 HP @ 3750 RPM) has 324 more horse power than 2005 Audi A4. (170 HP @ 6500 RPM). In normal driving conditions, 2009 Audi Q7 should accelerate faster than 2005 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi Q7 weights approximately 949 kg more than 2005 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 2005 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 (1,000 Nm) has 770 more torque (in Nm) than 2005 Audi A4. (230 Nm). This means 2009 Audi Q7 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A4.
Compare all specifications:
| 2009 Audi Q7 | 2005 Audi A4 | |
| Make | Audi | Audi |
| Model | Q7 | A4 |
| Year Released | 2009 | 2005 |
| Body Type | SUV | Convertible |
| Engine Position | Front | Front |
| Engine Size | 5934 cc | 1786 cc |
| Engine Cylinders | 12 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 494 HP | 170 HP |
| Engine RPM | 3750 RPM | 6500 RPM |
| Torque | 1000 Nm | 230 Nm |
| Engine Bore Size | 83 mm | 81 mm |
| Engine Stroke Size | 91.4 mm | 86 mm |
| Engine Compression Ratio | 16.0:1 | 9.3:1 |
| Drive Type | 4WD | Front |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 2605 kg | 1656 kg |
| Vehicle Length | 5070 mm | 4580 mm |
| Vehicle Width | 2010 mm | 1780 mm |
| Vehicle Height | 1700 mm | 1400 mm |
| Wheelbase Size | 3010 mm | 2770 mm |
| Fuel Consumption Overall | 11.3 L/100km | 9.1 L/100km |
| Fuel Tank Capacity | 100 L | 70 L |
