2008 Audi A4 vs. 2003 Opel Vectra
To start off, 2008 Audi A4 is newer by 5 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 2,957 cc (6 cylinders), 2003 Opel Vectra is equipped with a bigger engine. In terms of performance, 2003 Opel Vectra (173 HP @ 4000 RPM) has 12 more horse power than 2008 Audi A4. (161 HP @ 5700 RPM) In normal driving conditions, 2003 Opel Vectra should accelerate faster than 2008 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Vectra weights approximately 65 kg more than 2008 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, 2003 Opel Vectra (370 Nm @ 1900 RPM) has 145 more torque (in Nm) than 2008 Audi A4. (225 Nm @ 1950 RPM). This means 2003 Opel Vectra will have an easier job in driving up hills or pulling heavy equipment than 2008 Audi A4.
Compare all specifications:
| 2008 Audi A4 | 2003 Opel Vectra | |
| Make | Audi | Opel |
| Model | A4 | Vectra |
| Year Released | 2008 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 1781 cc | 2957 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 161 HP | 173 HP |
| Engine RPM | 5700 RPM | 4000 RPM |
| Torque | 225 Nm | 370 Nm |
| Torque RPM | 1950 RPM | 1900 RPM |
| Engine Bore Size | 81.1 mm | 87.5 mm |
| Engine Stroke Size | 86.4 mm | 82 mm |
| Engine Compression Ratio | 9.0:1 | 18.5:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1540 kg | 1605 kg |
| Vehicle Length | 4580 mm | 4600 mm |
| Vehicle Width | 1780 mm | 1770 mm |
| Vehicle Height | 1400 mm | 1470 mm |
| Wheelbase Size | 2660 mm | 2740 mm |
| Fuel Consumption Overall | 8.5 L/100km | 7 L/100km |
| Fuel Tank Capacity | 70 L | 60 L |
