2009 Audi A3 vs. 2007 Opel Astra
To start off, 2009 Audi A3 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Opel Astra. In addition, the cost of maintenance, including insurance, on 2007 Opel Astra would be higher. At 1,968 cc (4 cylinders), 2009 Audi A3 is equipped with a bigger engine. In terms of performance, 2009 Audi A3 (138 HP @ 4000 RPM) has 34 more horse power than 2007 Opel Astra. (104 HP @ 6000 RPM). In normal driving conditions, 2009 Audi A3 should accelerate faster than 2007 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2007 Opel Astra weights approximately 335 kg more than 2009 Audi A3.
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 Audi A3 (320 Nm @ 2500 RPM) has 170 more torque (in Nm) than 2007 Opel Astra. (150 Nm @ 3900 RPM). This means 2009 Audi A3 will have an easier job in driving up hills or pulling heavy equipment than 2007 Opel Astra.
Compare all specifications:
| 2009 Audi A3 | 2007 Opel Astra | |
| Make | Audi | Opel |
| Model | A3 | Astra |
| Year Released | 2009 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 1968 cc | 1587 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 138 HP | 104 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 320 Nm | 150 Nm |
| Torque RPM | 2500 RPM | 3900 RPM |
| Engine Bore Size | 81.1 mm | 79 mm |
| Engine Stroke Size | 95.5 mm | 81.5 mm |
| Engine Compression Ratio | 18.0:1 | 10.5:1 |
| Fuel Type | Diesel | Gasoline |
| Acceleration 0-100mph | 9.5 seconds | 12.3 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 3 doors | 5 doors |
| Vehicle Weight | 895 kg | 1230 kg |
| Vehicle Length | 4210 mm | 4260 mm |
| Vehicle Width | 1960 mm | 1760 mm |
| Vehicle Height | 1430 mm | 1470 mm |
| Wheelbase Size | 2580 mm | 2620 mm |
| Fuel Consumption Overall | 6.8 L/100km | 6.6 L/100km |
| Fuel Tank Capacity | 55 L | 52 L |
