2007 Audi A4 vs. 2009 Audi A6
To start off, 2009 Audi A6 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 4,172 cc (8 cylinders), 2009 Audi A6 is equipped with a bigger engine. In terms of performance, 2009 Audi A6 (296 HP @ 6200 RPM) has 96 more horse power than 2007 Audi A4. (200 HP @ 5100 RPM) In normal driving conditions, 2009 Audi A6 should accelerate faster than 2007 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi A4 weights approximately 130 kg more than 2009 Audi A6.
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 A6 (400 Nm @ 3000 RPM) has 118 more torque (in Nm) than 2007 Audi A4. (282 Nm @ 1800 RPM). This means 2009 Audi A6 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 A6 | |
| Make | Audi | Audi |
| Model | A4 | A6 |
| Year Released | 2007 | 2009 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1984 cc | 4172 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 200 HP | 296 HP |
| Engine RPM | 5100 RPM | 6200 RPM |
| Torque | 282 Nm | 400 Nm |
| Torque RPM | 1800 RPM | 3000 RPM |
| Engine Bore Size | 82.5 mm | 84.5 mm |
| Engine Stroke Size | 92.8 mm | 93 mm |
| Fuel Type | Diesel | Gasoline - Premium |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1880 kg | 1750 kg |
| Vehicle Length | 4590 mm | 4840 mm |
| Vehicle Width | 1780 mm | 1860 mm |
| Vehicle Height | 1430 mm | 1460 mm |
| Wheelbase Size | 2660 mm | 2770 mm |
| Fuel Consumption Overall | 9.4 L/100km | 13 L/100km |
| Fuel Tank Capacity | 63 L | 82 L |
