2007 Audi RS4 vs. 2009 Audi A3
To start off, 2009 Audi A3 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Audi RS4. In addition, the cost of maintenance, including insurance, on 2007 Audi RS4 would be higher. At 4,161 cc (8 cylinders), 2007 Audi RS4 is equipped with a bigger engine. In terms of performance, 2007 Audi RS4 (414 HP @ 7800 RPM) has 276 more horse power than 2009 Audi A3. (138 HP @ 4000 RPM). In normal driving conditions, 2007 Audi RS4 should accelerate faster than 2009 Audi A3. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi RS4 weights approximately 815 kg more than 2009 Audi A3. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Audi RS4 is four wheel drive (4WD), it will have significant more traction and grip than 2009 Audi A3. In wet, icy, snow, or gravel driving conditions, 2007 Audi RS4 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, 2007 Audi RS4 (430 Nm @ 5500 RPM) has 110 more torque (in Nm) than 2009 Audi A3. (320 Nm @ 2500 RPM). This means 2007 Audi RS4 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A3.
Compare all specifications:
| 2007 Audi RS4 | 2009 Audi A3 | |
| Make | Audi | Audi |
| Model | RS4 | A3 |
| Year Released | 2007 | 2009 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 4161 cc | 1968 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 414 HP | 138 HP |
| Engine RPM | 7800 RPM | 4000 RPM |
| Torque | 430 Nm | 320 Nm |
| Torque RPM | 5500 RPM | 2500 RPM |
| Engine Bore Size | 84.5 mm | 81.1 mm |
| Engine Stroke Size | 92.8 mm | 95.5 mm |
| Engine Compression Ratio | 12.5:1 | 18.0:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Acceleration 0-100mph | 4.8 seconds | 9.5 seconds |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 3 doors |
| Vehicle Weight | 1710 kg | 895 kg |
| Vehicle Length | 4590 mm | 4210 mm |
| Vehicle Width | 1820 mm | 1960 mm |
| Vehicle Height | 1420 mm | 1430 mm |
| Wheelbase Size | 2660 mm | 2580 mm |
| Fuel Consumption Overall | 13.5 L/100km | 6.8 L/100km |
| Fuel Tank Capacity | 70 L | 55 L |
