1999 Audi A4 vs. 2004 Opel Astra
To start off, 2004 Opel Astra is newer by 5 year(s). Which means there will be less support and parts availability for 1999 Audi A4. In addition, the cost of maintenance, including insurance, on 1999 Audi A4 would be higher. At 1,795 cc (4 cylinders), 2004 Opel Astra is equipped with a bigger engine. In terms of performance, both vehicles can yield 123 horse power. So under normal driving conditions, the acceleration of both vehicles should be relatively similar. With that said, vehicle weight also plays an important factor in acceleration. 2004 Opel Astra weights approximately 85 kg more than 1999 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, 2004 Opel Astra (170 Nm @ 3800 RPM) has 2 more torque (in Nm) than 1999 Audi A4. (168 Nm @ 3500 RPM). This means 2004 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 1999 Audi A4.
Compare all specifications:
| 1999 Audi A4 | 2004 Opel Astra | |
| Make | Audi | Opel |
| Model | A4 | Astra |
| Year Released | 1999 | 2004 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 1781 cc | 1795 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 123 HP | 123 HP |
| Engine RPM | 5800 RPM | 5600 RPM |
| Torque | 168 Nm | 170 Nm |
| Torque RPM | 3500 RPM | 3800 RPM |
| Engine Bore Size | 81 mm | 80.5 mm |
| Engine Stroke Size | 86.4 mm | 88.2 mm |
| Engine Compression Ratio | 10.3:1 | 10.5:1 |
| Top Speed | 198 km/hour | 188 km/hour |
| Acceleration 0-100mph | 12.3 seconds | 12.2 seconds |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1265 kg | 1350 kg |
| Vehicle Length | 4480 mm | 4520 mm |
| Vehicle Width | 1740 mm | 1800 mm |
| Vehicle Height | 1420 mm | 1510 mm |
| Wheelbase Size | 2620 mm | 2710 mm |
| Fuel Tank Capacity | 62 L | 52 L |
