2005 Opel Vectra vs. 2007 BMW 545
To start off, 2007 BMW 545 is newer by 2 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 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 183 more horse power than 2005 Opel Vectra. (145 HP @ 4000 RPM) In normal driving conditions, 2007 BMW 545 should accelerate faster than 2005 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW 545 weights approximately 765 kg more than 2005 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, 2005 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 134 more torque (in Nm) than 2005 Opel Vectra. (316 Nm @ 2000 RPM). This means 2007 BMW 545 will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Vectra. 2007 BMW 545 has automatic transmission and 2005 Opel Vectra has manual transmission. 2005 Opel Vectra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 BMW 545 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Opel Vectra | 2007 BMW 545 | |
| Make | Opel | BMW |
| Model | Vectra | 545 |
| Year Released | 2005 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 1910 cc | 4397 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 145 HP | 328 HP |
| Engine RPM | 4000 RPM | 6100 RPM |
| Torque | 316 Nm | 450 Nm |
| Torque RPM | 2000 RPM | 3600 RPM |
| Engine Bore Size | 82 mm | 92 mm |
| Engine Stroke Size | 90.4 mm | 82.7 mm |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 217 km/hour | 250 km/hour |
| Acceleration 0-100mph | 9.8 seconds | 5.9 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1210 kg | 1975 kg |
| Vehicle Length | 4600 mm | 4850 mm |
| Vehicle Width | 1800 mm | 1850 mm |
| Vehicle Height | 1470 mm | 1500 mm |
| Wheelbase Size | 2690 mm | 2840 mm |
| Fuel Consumption Overall | 5.9 L/100km | 11.3 L/100km |
| Fuel Tank Capacity | 61 L | 70 L |
