2002 Audi A3 vs. 2005 Audi A4
To start off, 2005 Audi A4 is newer by 3 year(s). Which means there will be less support and parts availability for 2002 Audi A3. In addition, the cost of maintenance, including insurance, on 2002 Audi A3 would be higher. At 1,779 cc (4 cylinders), 2005 Audi A4 is equipped with a bigger engine. In terms of performance, 2005 Audi A4 (187 HP @ 5700 RPM) has 86 more horse power than 2002 Audi A3. (101 HP @ 5600 RPM) In normal driving conditions, 2005 Audi A4 should accelerate faster than 2002 Audi A3. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A4 weights approximately 740 kg more than 2002 Audi A3. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than 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, 2005 Audi A4 (240 Nm @ 1950 RPM) has 92 more torque (in Nm) than 2002 Audi A3. (148 Nm @ 3800 RPM). This means 2005 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2002 Audi A3.
Compare all specifications:
| 2002 Audi A3 | 2005 Audi A4 | |
| Make | Audi | Audi |
| Model | A3 | A4 |
| Year Released | 2002 | 2005 |
| Body Type | Hatchback | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1593 cc | 1779 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 5 valves |
| Horse Power | 101 HP | 187 HP |
| Engine RPM | 5600 RPM | 5700 RPM |
| Torque | 148 Nm | 240 Nm |
| Torque RPM | 3800 RPM | 1950 RPM |
| Engine Bore Size | 81 mm | 81 mm |
| Engine Stroke Size | 77.4 mm | 86.4 mm |
| Engine Compression Ratio | 10.5:1 | 9.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 185 km/hour | 237 km/hour |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 3 doors | 4 doors |
| Vehicle Weight | 1205 kg | 1945 kg |
| Vehicle Length | 4210 mm | 4550 mm |
| Vehicle Width | 1770 mm | 1770 mm |
| Vehicle Height | 1430 mm | 1430 mm |
| Wheelbase Size | 2580 mm | 2580 mm |
| Fuel Consumption Overall | 7 L/100km | 9.4 L/100km |
