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 2,958 cc (6 cylinders), 2003 Opel Vectra is equipped with a bigger engine. In terms of performance, 2003 Opel Vectra (176 HP @ 4000 RPM) has 6 more horse power than 2005 Audi A4. (170 HP @ 4000 RPM) In normal driving conditions, 2003 Opel Vectra should accelerate faster than 2005 Audi A4.
Because 2005 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2003 Opel Vectra. In wet, icy, snow, or gravel driving conditions, 2005 Audi A4 will offer significantly more control. 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, both vehicles can yield 370 Nm of torque. So under normal driving conditions, the ability to climb up hills and pull heavy equipment should be relatively similar for both vehicles.
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 | 2496 cc | 2958 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 170 HP | 176 HP |
| Engine RPM | 4000 RPM | 4000 RPM |
| Torque | 370 Nm | 370 Nm |
| Torque RPM | 1500 RPM | 1900 RPM |
| Engine Compression Ratio | 18.5:1 | 18.5:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1590 kg | 1590 kg |
| Vehicle Length | 4550 mm | 4830 mm |
| Vehicle Width | 1780 mm | 1800 mm |
| Vehicle Height | 1430 mm | 1510 mm |
