1999 Audi A4 vs. 2003 Opel Astra
To start off, 2003 Opel Astra is newer by 4 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 2,198 cc (4 cylinders), 2003 Opel Astra is equipped with a bigger engine. In terms of performance, 2003 Opel Astra (142 HP @ 5600 RPM) has 19 more horse power than 1999 Audi A4. (123 HP @ 5800 RPM) In normal driving conditions, 2003 Opel Astra should accelerate faster than 1999 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 1999 Audi A4 weights approximately 80 kg more than 2003 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, 2003 Opel Astra (204 Nm @ 4000 RPM) has 31 more torque (in Nm) than 1999 Audi A4. (173 Nm @ 3950 RPM). This means 2003 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 | 2003 Opel Astra | |
| Make | Audi | Opel |
| Model | A4 | Astra |
| Year Released | 1999 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 1781 cc | 2198 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 123 HP | 142 HP |
| Engine RPM | 5800 RPM | 5600 RPM |
| Torque | 173 Nm | 204 Nm |
| Torque RPM | 3950 RPM | 4000 RPM |
| Engine Bore Size | 81 mm | 86 mm |
| Engine Stroke Size | 86.4 mm | 94.6 mm |
| Fuel Type | Gasoline | Gasoline |
| Top Speed | 205 km/hour | 208 km/hour |
| Acceleration 0-100mph | 12.3 seconds | 10 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1230 kg | 1150 kg |
| Vehicle Length | 4480 mm | 4120 mm |
| Vehicle Width | 1740 mm | 1720 mm |
| Vehicle Height | 1420 mm | 1430 mm |
| Wheelbase Size | 2520 mm | 2740 mm |
| Fuel Consumption Overall | 13 L/100km | 8.1 L/100km |
| Fuel Tank Capacity | 60 L | 53 L |
