2005 Audi A4 vs. 2003 Opel Vectra
To start off, 2005 Audi A4 is newer by 2 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 2,976 cc (6 cylinders), 2005 Audi A4 is equipped with a bigger engine. In terms of performance, 2005 Audi A4 (220 HP @ 6300 RPM) has 67 more horse power than 2003 Opel Vectra. (153 HP @ 5600 RPM). In normal driving conditions, 2005 Audi A4 should accelerate faster than 2003 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A4 weights approximately 110 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, 2005 Audi A4 (300 Nm @ 3200 RPM) has 71 more torque (in Nm) than 2003 Opel Vectra. (229 Nm @ 3800 RPM). This means 2005 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Vectra. 2003 Opel Vectra has automatic transmission and 2005 Audi A4 has manual transmission. 2005 Audi A4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Opel Vectra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Audi A4 | 2003 Opel Vectra | |
| Make | Audi | Opel |
| Model | A4 | Vectra |
| Year Released | 2005 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 2976 cc | 2172 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 220 HP | 153 HP |
| Engine RPM | 6300 RPM | 5600 RPM |
| Torque | 300 Nm | 229 Nm |
| Torque RPM | 3200 RPM | 3800 RPM |
| Engine Bore Size | 82.5 mm | 86 mm |
| Engine Stroke Size | 92.8 mm | 94.6 mm |
| Engine Compression Ratio | 11.0:1 | 9.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Vehicle Weight | 1620 kg | 1510 kg |
| Vehicle Length | 4580 mm | 4830 mm |
| Vehicle Width | 1780 mm | 1800 mm |
| Vehicle Height | 1400 mm | 1510 mm |
