2009 Audi A4 vs. 2011 Opel Astra
To start off, 2011 Opel Astra is newer by 2 year(s). Which means there will be less support and parts availability for 2009 Audi A4. In addition, the cost of maintenance, including insurance, on 2009 Audi A4 would be higher. At 1,984 cc (4 cylinders), 2009 Audi A4 is equipped with a bigger engine. In terms of performance, 2009 Audi A4 (211 HP @ 4300 RPM) has 88 more horse power than 2011 Opel Astra. (123 HP @ 4000 RPM). In normal driving conditions, 2009 Audi A4 should accelerate faster than 2011 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2011 Opel Astra weights approximately 468 kg more than 2009 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, 2009 Audi A4 (351 Nm @ 1500 RPM) has 71 more torque (in Nm) than 2011 Opel Astra. (280 Nm @ 2000 RPM). This means 2009 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2011 Opel Astra.
Compare all specifications:
| 2009 Audi A4 | 2011 Opel Astra | |
| Make | Audi | Opel |
| Model | A4 | Astra |
| Year Released | 2009 | 2011 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1984 cc | 1796 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 211 HP | 123 HP |
| Engine RPM | 4300 RPM | 4000 RPM |
| Torque | 351 Nm | 280 Nm |
| Torque RPM | 1500 RPM | 2000 RPM |
| Engine Bore Size | 82.5 mm | 82 mm |
| Engine Stroke Size | 92.8 mm | 90.4 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 930 kg | 1398 kg |
| Vehicle Length | 4710 mm | 4260 mm |
| Vehicle Width | 1840 mm | 1760 mm |
| Vehicle Height | 1430 mm | 1470 mm |
| Wheelbase Size | 2820 mm | 2620 mm |
| Fuel Consumption Overall | 9.4 L/100km | 6 L/100km |
| Fuel Tank Capacity | 70 L | 52 L |
