2007 BMW 545 vs. 2003 Opel Vectra
To start off, 2007 BMW 545 is newer by 4 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 4,397 cc (8 cylinders), 2007 BMW 545 is equipped with a bigger engine. In terms of performance, 2007 BMW 545 (328 HP @ 6100 RPM) has 176 more horse power than 2003 Opel Vectra. (152 HP @ 5600 RPM). In normal driving conditions, 2007 BMW 545 should accelerate faster than 2003 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW 545 weights approximately 425 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.
Because 2007 BMW 545 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2007 BMW 545. However, in wet, icy, snow, or gravel driving conditions, 2003 Opel Vectra, being front wheel drive (FWD), will offer much better control with better grip. 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, 2007 BMW 545 (450 Nm @ 3600 RPM) has 221 more torque (in Nm) than 2003 Opel Vectra. (229 Nm @ 3800 RPM). This means 2007 BMW 545 will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Vectra.
Compare all specifications:
| 2007 BMW 545 | 2003 Opel Vectra | |
| Make | BMW | Opel |
| Model | 545 | Vectra |
| Year Released | 2007 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 4397 cc | 2197 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 328 HP | 152 HP |
| Engine RPM | 6100 RPM | 5600 RPM |
| Torque | 450 Nm | 229 Nm |
| Torque RPM | 3600 RPM | 3800 RPM |
| Engine Bore Size | 92 mm | 86 mm |
| Engine Stroke Size | 82.7 mm | 94.6 mm |
| Engine Compression Ratio | 10.0:1 | 12.0:1 |
| Top Speed | 250 km/hour | 212 km/hour |
| Acceleration 0-100mph | 5.9 seconds | 10.1 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1975 kg | 1550 kg |
| Vehicle Length | 4850 mm | 4830 mm |
| Vehicle Width | 1850 mm | 1800 mm |
| Vehicle Height | 1500 mm | 1510 mm |
| Wheelbase Size | 2840 mm | 2840 mm |
| Fuel Consumption Overall | 11.3 L/100km | 8.1 L/100km |
| Fuel Tank Capacity | 70 L | 60 L |
