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 1,968 cc (4 cylinders), 2004 Audi A4 is equipped with a bigger engine. In terms of performance, 2004 Audi A4 (137 HP @ 4000 RPM) has 14 more horse power than 2003 Opel Vectra. (123 HP @ 5600 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 92 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 (310 Nm @ 1740 RPM) has 148 more torque (in Nm) than 2003 Opel Vectra. (162 Nm @ 3800 RPM). 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 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1968 cc | 1794 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 137 HP | 123 HP |
| Engine RPM | 4000 RPM | 5600 RPM |
| Torque | 310 Nm | 162 Nm |
| Torque RPM | 1740 RPM | 3800 RPM |
| Engine Bore Size | 81 mm | 80.5 mm |
| Engine Stroke Size | 95.5 mm | 88.2 mm |
| Engine Compression Ratio | 18.0:1 | 10.5:1 |
| Top Speed | 201 km/hour | 192 km/hour |
| Acceleration 0-100mph | 10.2 seconds | 12.5 seconds |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1482 kg | 1390 kg |
| Vehicle Length | 4590 mm | 4500 mm |
| Vehicle Width | 1780 mm | 1710 mm |
| Vehicle Height | 1430 mm | 1430 mm |
| Wheelbase Size | 2580 mm | 2710 mm |
| Fuel Tank Capacity | 70 L | 60 L |
