2009 Audi A4 vs. 2005 Opel Vectra
To start off, 2009 Audi A4 is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Opel Vectra. In addition, the cost of maintenance, including insurance, on 2005 Opel Vectra 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 34 more horse power than 2009 Audi A4. (141 HP @ 4200 RPM) In normal driving conditions, 2005 Opel Vectra should accelerate faster than 2009 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2005 Opel Vectra weights approximately 185 kg more than 2009 Audi A4. 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 Opel Vectra (371 Nm @ 1900 RPM) has 51 more torque (in Nm) than 2009 Audi A4. (320 Nm @ 1750 RPM). This means 2005 Opel Vectra will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A4. 2005 Opel Vectra has automatic transmission and 2009 Audi A4 has manual transmission. 2009 Audi A4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Opel Vectra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Audi A4 | 2005 Opel Vectra | |
| Make | Audi | Opel |
| Model | A4 | Vectra |
| Year Released | 2009 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 1968 cc | 2958 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 141 HP | 175 HP |
| Engine RPM | 4200 RPM | 4000 RPM |
| Torque | 320 Nm | 371 Nm |
| Torque RPM | 1750 RPM | 1900 RPM |
| Fuel Type | Diesel | Diesel |
| Top Speed | 203 km/hour | 222 km/hour |
| Acceleration 0-100mph | 9.7 seconds | 9.8 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1520 kg | 1705 kg |
| Vehicle Length | 4710 mm | 4830 mm |
| Vehicle Width | 1830 mm | 1800 mm |
| Vehicle Height | 1440 mm | 1510 mm |
| Wheelbase Size | 2810 mm | 2710 mm |
| Fuel Consumption Overall | 5.7 L/100km | 7.3 L/100km |
| Fuel Tank Capacity | 70 L | 60 L |
