2005 Audi A3 vs. 2009 Opel Astra
To start off, 2009 Opel Astra is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Audi A3. In addition, the cost of maintenance, including insurance, on 2005 Audi A3 would be higher. At 1,795 cc (4 cylinders), 2009 Opel Astra is equipped with a bigger engine. In terms of performance, 2009 Opel Astra (138 HP @ 5600 RPM) has 37 more horse power than 2005 Audi A3. (101 HP @ 5600 RPM) In normal driving conditions, 2009 Opel Astra should accelerate faster than 2005 Audi A3. With that said, vehicle weight also plays an important factor in acceleration. 2009 Opel Astra weights approximately 73 kg more than 2005 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, 2009 Opel Astra (175 Nm @ 3800 RPM) has 27 more torque (in Nm) than 2005 Audi A3. (148 Nm @ 3800 RPM). This means 2009 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A3.
Compare all specifications:
| 2005 Audi A3 | 2009 Opel Astra | |
| Make | Audi | Opel |
| Model | A3 | Astra |
| Year Released | 2005 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 1595 cc | 1795 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 101 HP | 138 HP |
| Engine RPM | 5600 RPM | 5600 RPM |
| Torque | 148 Nm | 175 Nm |
| Torque RPM | 3800 RPM | 3800 RPM |
| Engine Bore Size | 81.1 mm | 80.5 mm |
| Engine Stroke Size | 77.4 mm | 88.2 mm |
| Engine Compression Ratio | 10.5:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Acceleration 0-100mph | 11.9 seconds | 10.2 seconds |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 3 doors | 5 doors |
| Vehicle Weight | 1205 kg | 1278 kg |
| Vehicle Length | 4210 mm | 4260 mm |
| Vehicle Width | 1770 mm | 1760 mm |
| Vehicle Height | 1430 mm | 1470 mm |
| Wheelbase Size | 2470 mm | 2620 mm |
| Fuel Consumption Overall | 7 L/100km | 7.3 L/100km |
| Fuel Tank Capacity | 55 L | 52 L |
