2006 Audi A4 vs. 2003 Opel Vectra
To start off, 2006 Audi A4 is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Opel Vectra. In addition, the cost of maintenance, including insurance, on 2003 Opel Vectra would be higher. At 2,393 cc (6 cylinders), 2006 Audi A4 is equipped with a bigger engine. In terms of performance, 2006 Audi A4 (168 HP @ 6000 RPM) has 16 more horse power than 2003 Opel Vectra. (152 HP @ 5600 RPM). In normal driving conditions, 2006 Audi A4 should accelerate faster than 2003 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi A4 weights approximately 50 kg more than 2003 Opel Vectra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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 Audi A4 (230 Nm @ 3200 RPM) has 1 more torque (in Nm) than 2003 Opel Vectra. (229 Nm @ 3800 RPM). This means 2006 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Vectra.
Compare all specifications:
| 2006 Audi A4 | 2003 Opel Vectra | |
| Make | Audi | Opel |
| Model | A4 | Vectra |
| Year Released | 2006 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 2393 cc | 2197 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 168 HP | 152 HP |
| Engine RPM | 6000 RPM | 5600 RPM |
| Torque | 230 Nm | 229 Nm |
| Torque RPM | 3200 RPM | 3800 RPM |
| Engine Bore Size | 81 mm | 86 mm |
| Engine Stroke Size | 77.4 mm | 94.6 mm |
| Engine Compression Ratio | 11.0:1 | 12.0:1 |
| Top Speed | 224 km/hour | 212 km/hour |
| Acceleration 0-100mph | 10 seconds | 10.1 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1600 kg | 1550 kg |
| Vehicle Length | 4580 mm | 4830 mm |
| Vehicle Width | 1780 mm | 1800 mm |
| Vehicle Height | 1400 mm | 1510 mm |
| Wheelbase Size | 2660 mm | 2840 mm |
| Fuel Consumption Overall | 9.8 L/100km | 8.1 L/100km |
| Fuel Tank Capacity | 70 L | 60 L |
