2004 Audi A4 vs. 2005 Opel Vectra
To start off, 2005 Opel Vectra is newer by 1 year(s). Which means there will be less support and parts availability for 2004 Audi A4. In addition, the cost of maintenance, including insurance, on 2004 Audi A4 would be higher. At 2,958 cc (6 cylinders), 2005 Opel Vectra is equipped with a bigger engine. In terms of performance, 2005 Opel Vectra (175 HP @ 4000 RPM) has 5 more horse power than 2004 Audi A4. (170 HP @ 6500 RPM) In normal driving conditions, 2005 Opel Vectra should accelerate faster than 2004 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi A4 weights approximately 20 kg more than 2005 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 Opel Vectra (370 Nm) has 135 more torque (in Nm) than 2004 Audi A4. (235 Nm). This means 2005 Opel Vectra will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi A4.
Compare all specifications:
| 2004 Audi A4 | 2005 Opel Vectra | |
| Make | Audi | Opel |
| Model | A4 | Vectra |
| Year Released | 2004 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 1784 cc | 2958 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 170 HP | 175 HP |
| Engine RPM | 6500 RPM | 4000 RPM |
| Torque | 235 Nm | 370 Nm |
| Engine Bore Size | 81 mm | 87.5 mm |
| Engine Stroke Size | 86 mm | 82 mm |
| Engine Compression Ratio | 9.3:1 | 18.5:1 |
| Drive Type | Front | Front |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1650 kg | 1630 kg |
| Vehicle Length | 4580 mm | 4600 mm |
| Vehicle Width | 1780 mm | 1800 mm |
| Vehicle Height | 1400 mm | 1470 mm |
| Wheelbase Size | 2580 mm | 2610 mm |
| Fuel Consumption Overall | 9.1 L/100km | 7 L/100km |
| Fuel Tank Capacity | 70 L | 61 L |
