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 39 more horse power than 2009 Audi A4. (158 HP @ 4500 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 695 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 Opel Astra (262 Nm @ 1950 RPM) has 12 more torque (in Nm) than 2009 Audi A4. (250 Nm @ 1500 RPM). This means 2009 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A4. 2009 Audi A4 has automatic transmission and 2009 Opel Astra has manual transmission. 2009 Opel Astra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Audi A4 will be easier to drive especially in heavy traffic.
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 | 1798 cc | 1998 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 158 HP | 197 HP |
| Engine RPM | 4500 RPM | 5400 RPM |
| Torque | 250 Nm | 262 Nm |
| Torque RPM | 1500 RPM | 1950 RPM |
| Engine Compression Ratio | 9.6:1 | 8.8:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 218 km/hour | 234 km/hour |
| Acceleration 0-100mph | 8.9 seconds | 8.1 seconds |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 930 kg | 1625 kg |
| Vehicle Length | 4710 mm | 4300 mm |
| Vehicle Width | 2010 mm | 1760 mm |
| Vehicle Height | 1430 mm | 1440 mm |
| Wheelbase Size | 2810 mm | 2620 mm |
| Fuel Consumption Overall | 7.4 L/100km | 9.3 L/100km |
| Fuel Tank Capacity | 65 L | 52 L |
