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 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 161 more horse power than 2005 Audi A4. (161 HP @ 5700 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 830 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.
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 (760 Nm @ 2500 RPM) has 535 more torque (in Nm) than 2005 Audi A4. (225 Nm @ 1950 RPM). This means 2009 Audi Q7 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A4. 2009 Audi Q7 has automatic transmission and 2005 Audi A4 has manual transmission. 2005 Audi A4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Audi Q7 will be easier to drive especially in heavy traffic.
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 | 4133 cc | 1781 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 322 HP | 161 HP |
| Engine RPM | 3750 RPM | 5700 RPM |
| Torque | 760 Nm | 225 Nm |
| Torque RPM | 2500 RPM | 1950 RPM |
| Engine Bore Size | 83 mm | 81 mm |
| Engine Stroke Size | 95.5 mm | 86.4 mm |
| Engine Compression Ratio | 16.5:1 | 9.0:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 236 km/hour | 222 km/hour |
| Acceleration 0-100mph | 6.4 seconds | 9.5 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Manual |
| Number of Seats | 7 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 2420 kg | 1590 kg |
| Vehicle Length | 5090 mm | 4580 mm |
| Vehicle Width | 2090 mm | 1780 mm |
| Vehicle Height | 1780 mm | 1400 mm |
| Wheelbase Size | 3010 mm | 2660 mm |
| Fuel Consumption Overall | 11.1 L/100km | 9.4 L/100km |
| Fuel Tank Capacity | 100 L | 66 L |
