2005 Audi A4 vs. 2011 Opel Astra
To start off, 2011 Opel Astra is newer by 6 year(s). Which means there will be less support and parts availability for 2005 Audi A4. In addition, the cost of maintenance, including insurance, on 2005 Audi A4 would be higher. At 2,983 cc (6 cylinders), 2005 Audi A4 is equipped with a bigger engine. In terms of performance, 2011 Opel Astra (239 HP @ 5600 RPM) has 19 more horse power than 2005 Audi A4. (220 HP @ 6500 RPM) In normal driving conditions, 2011 Opel Astra should accelerate faster than 2005 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A4 weights approximately 427 kg more than 2011 Opel Astra.
Because 2005 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2011 Opel Astra. In wet, icy, snow, or gravel driving conditions, 2005 Audi A4 will offer significantly more control. 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, 2011 Opel Astra (320 Nm) has 20 more torque (in Nm) than 2005 Audi A4. (300 Nm). This means 2011 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A4.
Compare all specifications:
| 2005 Audi A4 | 2011 Opel Astra | |
| Make | Audi | Opel |
| Model | A4 | Astra |
| Year Released | 2005 | 2011 |
| Body Type | Convertible | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2983 cc | 1998 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 220 HP | 239 HP |
| Engine RPM | 6500 RPM | 5600 RPM |
| Torque | 300 Nm | 320 Nm |
| Engine Bore Size | 83 mm | 86 mm |
| Engine Stroke Size | 93 mm | 86 mm |
| Engine Compression Ratio | 10.1:1 | 8.8:1 |
| Drive Type | 4WD | Front |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 3 doors |
| Vehicle Weight | 1820 kg | 1393 kg |
| Vehicle Length | 4580 mm | 4300 mm |
| Vehicle Width | 1780 mm | 1760 mm |
| Vehicle Height | 1400 mm | 1410 mm |
| Wheelbase Size | 2580 mm | 2620 mm |
| Fuel Consumption Overall | 11.2 L/100km | 9.2 L/100km |
| Fuel Tank Capacity | 66 L | 52 L |
