2004 Audi A4 vs. 2005 Opel Astra
To start off, 2005 Opel Astra is newer by 1 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 1,795 cc, 2005 Opel Astra is equipped with a bigger engine. In terms of performance, 2005 Opel Astra (120 HP @ 4000 RPM) has 19 more horse power than 2004 Audi A4. (101 HP @ 5600 RPM) In normal driving conditions, 2005 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 115 kg more than 2005 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, 2005 Opel Astra (170 Nm @ 3800 RPM) has 22 more torque (in Nm) than 2004 Audi A4. (148 Nm @ 3800 RPM). This means 2005 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 | 2005 Opel Astra | |
| Make | Audi | Opel |
| Model | A4 | Astra |
| Year Released | 2004 | 2005 |
| Body Type | Station Wagon | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 1594 cc | 1795 cc |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 101 HP | 120 HP |
| Engine RPM | 5600 RPM | 4000 RPM |
| Torque | 148 Nm | 170 Nm |
| Torque RPM | 3800 RPM | 3800 RPM |
| Engine Bore Size | 81 mm | 80.5 mm |
| Engine Stroke Size | 77.4 mm | 88.2 mm |
| Engine Compression Ratio | 10.5:1 | 10.5:1 |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1350 kg | 1235 kg |
| Vehicle Length | 4590 mm | 4520 mm |
| Wheelbase Size | 2660 mm | 2740 mm |
| Fuel Tank Capacity | 70 L | 52 L |
