2009 Audi A5 vs. 2005 Audi A6
To start off, 2009 Audi A5 is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Audi A6. In addition, the cost of maintenance, including insurance, on 2005 Audi A6 would be higher. At 2,495 cc (6 cylinders), 2005 Audi A6 is equipped with a bigger engine. In terms of performance, 2005 Audi A6 (178 HP @ 6000 RPM) has 9 more horse power than 2009 Audi A5. (169 HP @ 4200 RPM) In normal driving conditions, 2005 Audi A6 should accelerate faster than 2009 Audi A5. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A6 weights approximately 155 kg more than 2009 Audi A5. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 2009 Audi A5. In wet, icy, snow, or gravel driving conditions, 2005 Audi A6 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 A5 (350 Nm @ 1750 RPM) has 125 more torque (in Nm) than 2005 Audi A6. (225 Nm @ 3000 RPM). This means 2009 Audi A5 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A6.
Compare all specifications:
| 2009 Audi A5 | 2005 Audi A6 | |
| Make | Audi | Audi |
| Model | A5 | A6 |
| Year Released | 2009 | 2005 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1968 cc | 2495 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 169 HP | 178 HP |
| Engine RPM | 4200 RPM | 6000 RPM |
| Torque | 350 Nm | 225 Nm |
| Torque RPM | 1750 RPM | 3000 RPM |
| Engine Bore Size | 81 mm | 81 mm |
| Engine Stroke Size | 95.5 mm | 77.4 mm |
| Engine Compression Ratio | 16.5:1 | 10.3:1 |
| Top Speed | 230 km/hour | 230 km/hour |
| Acceleration 0-100mph | 8.3 seconds | 9.1 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1470 kg | 1625 kg |
| Vehicle Length | 4630 mm | 4920 mm |
| Vehicle Width | 1860 mm | 1860 mm |
| Vehicle Height | 1380 mm | 1470 mm |
| Wheelbase Size | 2760 mm | 2580 mm |
| Fuel Consumption Overall | 5.6 L/100km | 10.9 L/100km |
| Fuel Tank Capacity | 65 L | 80 L |
