2009 Audi A4 vs. 2002 Opel Astra
To start off, 2009 Audi A4 is newer by 7 year(s). Which means there will be less support and parts availability for 2002 Opel Astra. In addition, the cost of maintenance, including insurance, on 2002 Opel Astra would be higher. At 1,998 cc (4 cylinders), 2002 Opel Astra is equipped with a bigger engine. In terms of performance, 2002 Opel Astra (187 HP @ 5400 RPM) has 59 more horse power than 2009 Audi A4. (128 HP @ 5700 RPM) In normal driving conditions, 2002 Opel Astra should accelerate faster than 2009 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A4 weights approximately 215 kg more than 2002 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, 2002 Opel Astra (256 Nm @ 1950 RPM) has 61 more torque (in Nm) than 2009 Audi A4. (195 Nm @ 3500 RPM). This means 2002 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A4.
Compare all specifications:
| 2009 Audi A4 | 2002 Opel Astra | |
| Make | Audi | Opel |
| Model | A4 | Astra |
| Year Released | 2009 | 2002 |
| Body Type | Convertible | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1984 cc | 1998 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 128 HP | 187 HP |
| Engine RPM | 5700 RPM | 5400 RPM |
| Torque | 195 Nm | 256 Nm |
| Torque RPM | 3500 RPM | 1950 RPM |
| Engine Bore Size | 82.6 mm | 86 mm |
| Engine Stroke Size | 92.8 mm | 86 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1630 kg | 1415 kg |
| Vehicle Length | 4580 mm | 4280 mm |
| Vehicle Width | 1780 mm | 1720 mm |
| Vehicle Height | 1400 mm | 1400 mm |
| Wheelbase Size | 2660 mm | 2620 mm |
