2005 Audi A4 vs. 2002 Opel Vectra
To start off, 2005 Audi A4 is newer by 3 year(s). Which means there will be less support and parts availability for 2002 Opel Vectra. In addition, the cost of maintenance, including insurance, on 2002 Opel Vectra would be higher. At 2,393 cc (6 cylinders), 2005 Audi A4 is equipped with a bigger engine. In terms of performance, 2005 Audi A4 (161 HP @ 4000 RPM) has 38 more horse power than 2002 Opel Vectra. (123 HP @ 6000 RPM). In normal driving conditions, 2005 Audi A4 should accelerate faster than 2002 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A4 weights approximately 122 kg more than 2002 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, 2005 Audi A4 (350 Nm @ 1500 RPM) has 179 more torque (in Nm) than 2002 Opel Vectra. (171 Nm @ 3800 RPM). This means 2005 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2002 Opel Vectra.
Compare all specifications:
| 2005 Audi A4 | 2002 Opel Vectra | |
| Make | Audi | Opel |
| Model | A4 | Vectra |
| Year Released | 2005 | 2002 |
| Engine Position | Front | Front |
| Engine Size | 2393 cc | 1796 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 161 HP | 123 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 350 Nm | 171 Nm |
| Torque RPM | 1500 RPM | 3800 RPM |
| Engine Bore Size | 78.3 mm | 80.5 mm |
| Engine Stroke Size | 86.4 mm | 88.2 mm |
| Fuel Type | Diesel | Gasoline |
| Top Speed | 225 km/hour | 248 km/hour |
| Acceleration 0-100mph | 9.1 seconds | 7.5 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 | 1625 kg | 1503 kg |
| Vehicle Length | 4550 mm | 4600 mm |
| Vehicle Width | 1780 mm | 1800 mm |
| Vehicle Height | 1430 mm | 1470 mm |
| Wheelbase Size | 2660 mm | 2710 mm |
| Fuel Consumption Overall | 7.2 L/100km | 10.1 L/100km |
| Fuel Tank Capacity | 70 L | 61 L |
