2008 Audi A4 vs. 2009 Opel Astra
To start off, 2009 Opel Astra is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Audi A4. In addition, the cost of maintenance, including insurance, on 2008 Audi A4 would be higher. 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 69 more horse power than 2008 Audi A4. (128 HP @ 5700 RPM) In normal driving conditions, 2009 Opel Astra should accelerate faster than 2008 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2009 Opel Astra weights approximately 21 kg more than 2008 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 @ 4200 RPM) has 67 more torque (in Nm) than 2008 Audi A4. (195 Nm @ 3300 RPM). This means 2009 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 2008 Audi A4.
Compare all specifications:
| 2008 Audi A4 | 2009 Opel Astra | |
| Make | Audi | Opel |
| Model | A4 | Astra |
| Year Released | 2008 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 1983 cc | 1998 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 128 HP | 197 HP |
| Engine RPM | 5700 RPM | 5400 RPM |
| Torque | 195 Nm | 262 Nm |
| Torque RPM | 3300 RPM | 4200 RPM |
| Engine Compression Ratio | 10.3:1 | 8.8:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Acceleration 0-100mph | 10.1 seconds | 8.2 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1365 kg | 1386 kg |
| Vehicle Length | 4550 mm | 4480 mm |
| Vehicle Width | 1780 mm | 2030 mm |
| Vehicle Height | 1430 mm | 1420 mm |
| Wheelbase Size | 2660 mm | 2620 mm |
| Fuel Consumption Overall | 8 L/100km | 7.7 L/100km |
| Fuel Tank Capacity | 70 L | 52 L |
