2009 Audi A4 vs. 2006 Opel Astra
To start off, 2009 Audi A4 is newer by 3 year(s). Which means there will be less support and parts availability for 2006 Opel Astra. In addition, the cost of maintenance, including insurance, on 2006 Opel Astra would be higher. At 1,798 cc (4 cylinders), 2009 Audi A4 is equipped with a bigger engine. In terms of performance, 2009 Audi A4 (158 HP @ 4500 RPM) has 69 more horse power than 2006 Opel Astra. (89 HP @ 4000 RPM). In normal driving conditions, 2009 Audi A4 should accelerate faster than 2006 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2006 Opel Astra weights approximately 400 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 (250 Nm @ 1500 RPM) has 49 more torque (in Nm) than 2006 Opel Astra. (201 Nm @ 1750 RPM). This means 2009 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2006 Opel Astra. 2009 Audi A4 has automatic transmission and 2006 Opel Astra has manual transmission. 2006 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 | 2006 Opel Astra | |
| Make | Audi | Opel |
| Model | A4 | Astra |
| Year Released | 2009 | 2006 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1798 cc | 1248 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 158 HP | 89 HP |
| Engine RPM | 4500 RPM | 4000 RPM |
| Torque | 250 Nm | 201 Nm |
| Torque RPM | 1500 RPM | 1750 RPM |
| Engine Bore Size | 82.5 mm | 69.6 mm |
| Engine Stroke Size | 84.1 mm | 82 mm |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 218 km/hour | 174 km/hour |
| Acceleration 0-100mph | 8.9 seconds | 13.6 seconds |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 930 kg | 1330 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 | 4.8 L/100km |
| Fuel Tank Capacity | 65 L | 52 L |
