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 2,198 cc (4 cylinders), 2005 Opel Vectra is equipped with a bigger engine. In terms of performance, 2009 Audi A4 (158 HP @ 4500 RPM) has 13 more horse power than 2005 Opel Vectra. (145 HP @ 5600 RPM). In normal driving conditions, 2009 Audi A4 should accelerate faster than 2005 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2005 Opel Vectra weights approximately 15 kg more than 2009 Audi A4.
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, 2009 Audi A4 (250 Nm @ 1500 RPM) has 30 more torque (in Nm) than 2005 Opel Vectra. (220 Nm @ 3800 RPM). This means 2009 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Vectra. 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 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1797 cc | 2198 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 158 HP | 145 HP |
| Engine RPM | 4500 RPM | 5600 RPM |
| Torque | 250 Nm | 220 Nm |
| Torque RPM | 1500 RPM | 3800 RPM |
| Engine Bore Size | 82.5 mm | 86 mm |
| Engine Stroke Size | 84.1 mm | 94.6 mm |
| Engine Compression Ratio | 9.6:1 | 12.0:1 |
| Top Speed | 218 km/hour | 212 km/hour |
| Acceleration 0-100mph | 8.9 seconds | 10.8 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1470 kg | 1485 kg |
| Vehicle Length | 4710 mm | 4600 mm |
| Vehicle Width | 1830 mm | 1800 mm |
| Vehicle Height | 1440 mm | 1470 mm |
| Wheelbase Size | 2810 mm | 2840 mm |
| Fuel Consumption Overall | 7.2 L/100km | 8.5 L/100km |
| Fuel Tank Capacity | 65 L | 61 L |
