2009 Audi A4 vs. 2009 Opel Astra
To start off, both 2009 Audi A4 and 2009 Opel Astra were released in the same year (2009). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 1,998 cc (4 cylinders), 2009 Opel Astra is equipped with a bigger engine. In terms of performance, 2009 Opel Astra (197 HP @ 5400 RPM) has 56 more horse power than 2009 Audi A4. (141 HP @ 4200 RPM) In normal driving conditions, 2009 Opel Astra should accelerate faster than 2009 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2009 Opel Astra weights approximately 105 kg more than 2009 Audi A4. 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 Audi A4 (320 Nm @ 1750 RPM) has 58 more torque (in Nm) than 2009 Opel Astra. (262 Nm @ 1950 RPM). This means 2009 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2009 Opel Astra.
Compare all specifications:
| 2009 Audi A4 | 2009 Opel Astra | |
| Make | Audi | Opel |
| Model | A4 | Astra |
| Year Released | 2009 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 1968 cc | 1998 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 141 HP | 197 HP |
| Engine RPM | 4200 RPM | 5400 RPM |
| Torque | 320 Nm | 262 Nm |
| Torque RPM | 1750 RPM | 1950 RPM |
| Engine Compression Ratio | 16.5:1 | 8.8:1 |
| Fuel Type | Diesel | Gasoline |
| Top Speed | 203 km/hour | 234 km/hour |
| Acceleration 0-100mph | 9.7 seconds | 8.1 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1520 kg | 1625 kg |
| Vehicle Length | 4710 mm | 4300 mm |
| Vehicle Width | 1830 mm | 1760 mm |
| Vehicle Height | 1440 mm | 1440 mm |
| Wheelbase Size | 2810 mm | 2620 mm |
| Fuel Consumption Overall | 5.7 L/100km | 9.3 L/100km |
| Fuel Tank Capacity | 70 L | 52 L |
