2005 Audi A3 vs. 2005 Audi A4
To start off, both 2005 Audi A3 and 2005 Audi A4 were released in the same year (2005). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 1,984 cc (4 cylinders), 2005 Audi A3 is equipped with a bigger engine. In terms of performance, 2005 Audi A4 (148 HP @ 5700 RPM) has 9 more horse power than 2005 Audi A3. (139 HP @ 4000 RPM) In normal driving conditions, 2005 Audi A4 should accelerate faster than 2005 Audi A3. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A3 weights approximately 10 kg more than 2005 Audi A4.
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 A3 (320 Nm @ 1750 RPM) has 110 more torque (in Nm) than 2005 Audi A4. (210 Nm @ 1750 RPM). This means 2005 Audi A3 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A4.
Compare all specifications:
| 2005 Audi A3 | 2005 Audi A4 | |
| Make | Audi | Audi |
| Model | A3 | A4 |
| Year Released | 2005 | 2005 |
| Body Type | Hatchback | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1984 cc | 1781 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 139 HP | 148 HP |
| Engine RPM | 4000 RPM | 5700 RPM |
| Torque | 320 Nm | 210 Nm |
| Torque RPM | 1750 RPM | 1750 RPM |
| Engine Bore Size | 81 mm | 81.1 mm |
| Engine Stroke Size | 95.5 mm | 86.4 mm |
| Engine Compression Ratio | 18.0:1 | 9.3:1 |
| Acceleration 0-100mph | 9.5 seconds | 9.1 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 3 doors | 4 doors |
| Vehicle Weight | 1385 kg | 1375 kg |
| Vehicle Length | 4210 mm | 4550 mm |
| Vehicle Width | 1770 mm | 1780 mm |
| Vehicle Height | 1430 mm | 1430 mm |
| Wheelbase Size | 2470 mm | 2660 mm |
| Fuel Consumption Overall | 5.5 L/100km | 8.2 L/100km |
| Fuel Tank Capacity | 55 L | 70 L |
