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 1,998 cc (4 cylinders), 2011 Opel Astra is equipped with a bigger engine. In terms of performance, 2009 Audi A4 (200 HP @ 5100 RPM) has 3 more horse power than 2011 Opel Astra. (197 HP @ 5400 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 356 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 (281 Nm @ 1800 RPM) has 19 more torque (in Nm) than 2011 Opel Astra. (262 Nm @ 4200 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 |
| Engine Position | Front | Front |
| Engine Size | 1984 cc | 1998 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 200 HP | 197 HP |
| Engine RPM | 5100 RPM | 5400 RPM |
| Torque | 281 Nm | 262 Nm |
| Torque RPM | 1800 RPM | 4200 RPM |
| Engine Compression Ratio | 10.5:1 | 8.8:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Front |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1030 kg | 1386 kg |
| Vehicle Length | 4580 mm | 4480 mm |
| Vehicle Width | 1780 mm | 2030 mm |
| Vehicle Height | 1400 mm | 1420 mm |
| Wheelbase Size | 2660 mm | 2620 mm |
| Fuel Consumption Overall | 9.4 L/100km | 7.7 L/100km |
| Fuel Tank Capacity | 70 L | 52 L |
