2004 Audi A4 vs. 2003 Opel Vectra
To start off, 2004 Audi A4 is newer by 1 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 1,794 cc (4 cylinders), 2003 Opel Vectra is equipped with a bigger engine. In terms of performance, 2004 Audi A4 (170 HP @ 6500 RPM) has 50 more horse power than 2003 Opel Vectra. (120 HP @ 5400 RPM). In normal driving conditions, 2004 Audi A4 should accelerate faster than 2003 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi A4 weights approximately 180 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, 2004 Audi A4 (235 Nm) has 68 more torque (in Nm) than 2003 Opel Vectra. (167 Nm). This means 2004 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Vectra.
Compare all specifications:
| 2004 Audi A4 | 2003 Opel Vectra | |
| Make | Audi | Opel |
| Model | A4 | Vectra |
| Year Released | 2004 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 1784 cc | 1794 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 170 HP | 120 HP |
| Engine RPM | 6500 RPM | 5400 RPM |
| Torque | 235 Nm | 167 Nm |
| Engine Bore Size | 81 mm | 80.5 mm |
| Engine Stroke Size | 86 mm | 88.2 mm |
| Drive Type | Front | Front |
| Number of Seats | 4 seats | 5 seats |
| Vehicle Weight | 1650 kg | 1470 kg |
| Vehicle Length | 4580 mm | 4830 mm |
| Vehicle Width | 1780 mm | 1800 mm |
| Vehicle Height | 1400 mm | 1510 mm |
