2004 Audi A4 vs. 2007 Opel Astra
To start off, 2007 Opel Astra is newer by 3 year(s). Which means there will be less support and parts availability for 2004 Audi A4. In addition, the cost of maintenance, including insurance, on 2004 Audi A4 would be higher. At 1,998 cc (4 cylinders), 2007 Opel Astra is equipped with a bigger engine. In terms of performance, 2007 Opel Astra (237 HP @ 5600 RPM) has 100 more horse power than 2004 Audi A4. (137 HP @ 4000 RPM) In normal driving conditions, 2007 Opel Astra should accelerate faster than 2004 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi A4 weights approximately 84 kg more than 2007 Opel Astra.
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, 2007 Opel Astra (320 Nm @ 2400 RPM) has 10 more torque (in Nm) than 2004 Audi A4. (310 Nm @ 1740 RPM). This means 2007 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi A4.
Compare all specifications:
| 2004 Audi A4 | 2007 Opel Astra | |
| Make | Audi | Opel |
| Model | A4 | Astra |
| Year Released | 2004 | 2007 |
| Body Type | Station Wagon | Hatchback |
| 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 | 137 HP | 237 HP |
| Engine RPM | 4000 RPM | 5600 RPM |
| Torque | 310 Nm | 320 Nm |
| Torque RPM | 1740 RPM | 2400 RPM |
| Engine Bore Size | 81 mm | 86 mm |
| Engine Stroke Size | 95.5 mm | 86 mm |
| Engine Compression Ratio | 18.0:1 | 8.8:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 201 km/hour | 244 km/hour |
| Acceleration 0-100mph | 10.2 seconds | 6.4 seconds |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 3 doors |
| Vehicle Weight | 1482 kg | 1398 kg |
| Vehicle Length | 4590 mm | 4300 mm |
| Vehicle Width | 1780 mm | 1760 mm |
| Vehicle Height | 1430 mm | 1410 mm |
| Wheelbase Size | 2580 mm | 2620 mm |
| Fuel Consumption Overall | 5.8 L/100km | 9.2 L/100km |
| Fuel Tank Capacity | 70 L | 52 L |
