2005 Audi A4 vs. 2009 Audi S3
To start off, 2009 Audi S3 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 1,984 cc (4 cylinders), 2009 Audi S3 is equipped with a bigger engine. In terms of performance, 2009 Audi S3 (252 HP @ 6000 RPM) has 151 more horse power than 2005 Audi A4. (101 HP @ 5600 RPM) In normal driving conditions, 2009 Audi S3 should accelerate faster than 2005 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi S3 weights approximately 160 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 S3 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 S3 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 S3 (331 Nm @ 2400 RPM) has 183 more torque (in Nm) than 2005 Audi A4. (148 Nm @ 3800 RPM). This means 2009 Audi S3 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 S3 | |
| Make | Audi | Audi |
| Model | A4 | S3 |
| Year Released | 2005 | 2009 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1595 cc | 1984 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 101 HP | 252 HP |
| Engine RPM | 5600 RPM | 6000 RPM |
| Torque | 148 Nm | 331 Nm |
| Torque RPM | 3800 RPM | 2400 RPM |
| Engine Bore Size | 81 mm | 82.5 mm |
| Engine Stroke Size | 77.4 mm | 92.8 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 190 km/hour | 250 km/hour |
| Acceleration 0-100mph | 12.9 seconds | 5.9 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1295 kg | 1455 kg |
| Vehicle Length | 4550 mm | 4220 mm |
| Vehicle Width | 1780 mm | 1410 mm |
| Vehicle Height | 1430 mm | 1770 mm |
| Wheelbase Size | 2770 mm | 2580 mm |
| Fuel Consumption Overall | 7.8 L/100km | 9.1 L/100km |
| Fuel Tank Capacity | 70 L | 60 L |
