1999 Audi A4 vs. 2006 Opel Astra
To start off, 2006 Opel Astra is newer by 7 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 1,910 cc (4 cylinders), 2006 Opel Astra is equipped with a bigger engine. In terms of performance, 2006 Opel Astra (148 HP @ 4000 RPM) has 48 more horse power than 1999 Audi A4. (100 HP @ 5300 RPM) In normal driving conditions, 2006 Opel Astra should accelerate faster 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, 2006 Opel Astra (320 Nm @ 2000 RPM) has 180 more torque (in Nm) than 1999 Audi A4. (140 Nm @ 3800 RPM). This means 2006 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 | 2006 Opel Astra | |
| Make | Audi | Opel |
| Model | A4 | Astra |
| Year Released | 1999 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 1594 cc | 1910 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 100 HP | 148 HP |
| Engine RPM | 5300 RPM | 4000 RPM |
| Torque | 140 Nm | 320 Nm |
| Torque RPM | 3800 RPM | 2000 RPM |
| Engine Bore Size | 81 mm | 83 mm |
| Engine Stroke Size | 77.5 mm | 92 mm |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Width | 1740 mm | 1760 mm |
