2008 Audi A3 vs. 2005 Audi A4
To start off, 2008 Audi A3 is newer by 3 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), 2005 Audi A4 is equipped with a bigger engine. In terms of performance, 2005 Audi A4 (148 HP @ 6000 RPM) has 10 more horse power than 2008 Audi A3. (138 HP @ 4000 RPM) In normal driving conditions, 2005 Audi A4 should accelerate faster than 2008 Audi A3. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi A3 weights approximately 100 kg more than 2005 Audi A4.
Because 2008 Audi A3 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, 2008 Audi A3 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, 2008 Audi A3 (320 Nm @ 1750 RPM) has 120 more torque (in Nm) than 2005 Audi A4. (200 Nm @ 3500 RPM). This means 2008 Audi A3 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A4. 2008 Audi A3 has automatic transmission and 2005 Audi A4 has manual transmission. 2005 Audi A4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 Audi A3 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2008 Audi A3 | 2005 Audi A4 | |
| Make | Audi | Audi |
| Model | A3 | A4 |
| Year Released | 2008 | 2005 |
| Body Type | Hatchback | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 1968 cc | 1984 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 138 HP | 148 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 320 Nm | 200 Nm |
| Torque RPM | 1750 RPM | 3500 RPM |
| Engine Bore Size | 81 mm | 82.6 mm |
| Engine Stroke Size | 95.5 mm | 92.8 mm |
| Engine Compression Ratio | 18.0:1 | 11.5:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Acceleration 0-100mph | 9.7 seconds | 9.9 seconds |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 3 doors | 5 doors |
| Vehicle Weight | 1505 kg | 1405 kg |
| Vehicle Length | 4220 mm | 4550 mm |
| Vehicle Width | 1770 mm | 1780 mm |
| Vehicle Height | 1430 mm | 1430 mm |
| Wheelbase Size | 2580 mm | 2660 mm |
| Fuel Consumption Overall | 5.8 L/100km | 7.1 L/100km |
| Fuel Tank Capacity | 60 L | 70 L |
