2004 Audi A3 vs. 2005 Audi A4
To start off, 2005 Audi A4 is newer by 1 year(s). Which means there will be less support and parts availability for 2004 Audi A3. In addition, the cost of maintenance, including insurance, on 2004 Audi A3 would be higher. At 2,976 cc (6 cylinders), 2005 Audi A4 is equipped with a bigger engine. In terms of performance, 2005 Audi A4 (220 HP @ 6300 RPM) has 119 more horse power than 2004 Audi A3. (101 HP @ 5600 RPM) In normal driving conditions, 2005 Audi A4 should accelerate faster than 2004 Audi A3. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A4 weights approximately 415 kg more than 2004 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 (300 Nm @ 3200 RPM) has 152 more torque (in Nm) than 2004 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 2004 Audi A3.
Compare all specifications:
| 2004 Audi A3 | 2005 Audi A4 | |
| Make | Audi | Audi |
| Model | A3 | A4 |
| Year Released | 2004 | 2005 |
| Body Type | Hatchback | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1595 cc | 2976 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 101 HP | 220 HP |
| Engine RPM | 5600 RPM | 6300 RPM |
| Torque | 148 Nm | 300 Nm |
| Torque RPM | 3800 RPM | 3200 RPM |
| Engine Bore Size | 81 mm | 82.5 mm |
| Engine Stroke Size | 77.4 mm | 92.8 mm |
| Engine Compression Ratio | 10.5:1 | 11.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 185 km/hour | 234 km/hour |
| Acceleration 0-100mph | 12.2 seconds | 8.1 seconds |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 3 doors | 2 doors |
| Vehicle Weight | 1205 kg | 1620 kg |
| Vehicle Length | 4210 mm | 4580 mm |
| Vehicle Width | 1770 mm | 1780 mm |
| Vehicle Height | 1430 mm | 1400 mm |
| Wheelbase Size | 2760 mm | 2660 mm |
| Fuel Consumption Overall | 7 L/100km | 9.9 L/100km |
| Fuel Tank Capacity | 66 L | 70 L |
