2005 Audi A4 vs. 2009 Audi A4
To start off, 2009 Audi A4 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 2,965 cc (6 cylinders), 2009 Audi A4 is equipped with a bigger engine. In terms of performance, 2009 Audi A4 (222 HP @ 4000 RPM) has 61 more horse power than 2005 Audi A4. (161 HP @ 4000 RPM) In normal driving conditions, 2009 Audi A4 should accelerate faster than 2005 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A4 weights approximately 100 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 A4 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 A4 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 A4 (450 Nm @ 1400 RPM) has 100 more torque (in Nm) than 2005 Audi A4. (350 Nm @ 1500 RPM). This means 2009 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A4.
Compare all specifications:
| 2005 Audi A4 | 2009 Audi A4 | |
| Make | Audi | Audi |
| Model | A4 | A4 |
| Year Released | 2005 | 2009 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2496 cc | 2965 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 161 HP | 222 HP |
| Engine RPM | 4000 RPM | 4000 RPM |
| Torque | 350 Nm | 450 Nm |
| Torque RPM | 1500 RPM | 1400 RPM |
| Engine Bore Size | 78.4 mm | 83 mm |
| Engine Stroke Size | 86.4 mm | 91.4 mm |
| Engine Compression Ratio | 18.0:1 | 17.0:1 |
| Fuel Type | Diesel | Diesel |
| Acceleration 0-100mph | 8.8 seconds | 7.2 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1510 kg | 1610 kg |
| Vehicle Length | 4550 mm | 4550 mm |
| Vehicle Width | 1780 mm | 1780 mm |
| Vehicle Height | 1430 mm | 1430 mm |
| Wheelbase Size | 2660 mm | 2660 mm |
| Fuel Consumption Overall | 6.8 L/100km | 7.6 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
