2005 Audi A4 vs. 2003 Opel Vectra
To start off, 2005 Audi A4 is newer by 2 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 2,391 cc (6 cylinders), 2005 Audi A4 is equipped with a bigger engine. In terms of performance, 2005 Audi A4 (168 HP @ 6000 RPM) has 69 more horse power than 2003 Opel Vectra. (99 HP @ 4400 RPM). In normal driving conditions, 2005 Audi A4 should accelerate faster than 2003 Opel Vectra.
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, 2005 Audi A4 (230 Nm @ 3200 RPM) has 9 more torque (in Nm) than 2003 Opel Vectra. (221 Nm @ 1950 RPM). This means 2005 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Vectra.
Compare all specifications:
| 2005 Audi A4 | 2003 Opel Vectra | |
| Make | Audi | Opel |
| Model | A4 | Vectra |
| Year Released | 2005 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 2391 cc | 1998 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 168 HP | 99 HP |
| Engine RPM | 6000 RPM | 4400 RPM |
| Torque | 230 Nm | 221 Nm |
| Torque RPM | 3200 RPM | 1950 RPM |
| Engine Bore Size | 81 mm | 84 mm |
| Engine Stroke Size | 77.4 mm | 90 mm |
| Top Speed | 223 km/hour | 188 km/hour |
| Acceleration 0-100mph | 9.1 seconds | 13.5 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1495 kg | 1495 kg |
| Vehicle Length | 4550 mm | 4830 mm |
| Vehicle Width | 1780 mm | 1800 mm |
| Vehicle Height | 1430 mm | 1510 mm |
| Wheelbase Size | 2580 mm | 2640 mm |
| Fuel Consumption Overall | 9.6 L/100km | 5.9 L/100km |
| Fuel Tank Capacity | 70 L | 60 L |
