2002 BMW Z4 vs. 2005 Opel Vectra
To start off, 2005 Opel Vectra is newer by 3 year(s). Which means there will be less support and parts availability for 2002 BMW Z4. In addition, the cost of maintenance, including insurance, on 2002 BMW Z4 would be higher. At 2,494 cc (6 cylinders), 2002 BMW Z4 is equipped with a bigger engine. In terms of performance, 2002 BMW Z4 (190 HP @ 6000 RPM) has 70 more horse power than 2005 Opel Vectra. (120 HP @ 6000 RPM). In normal driving conditions, 2002 BMW Z4 should accelerate faster than 2005 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2002 BMW Z4 weights approximately 20 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 2002 BMW Z4 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 2002 BMW Z4. 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, 2002 BMW Z4 (245 Nm @ 3500 RPM) has 78 more torque (in Nm) than 2005 Opel Vectra. (167 Nm @ 3800 RPM). This means 2002 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Vectra.
Compare all specifications:
| 2002 BMW Z4 | 2005 Opel Vectra | |
| Make | BMW | Opel |
| Model | Z4 | Vectra |
| Year Released | 2002 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 1794 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 190 HP | 120 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 245 Nm | 167 Nm |
| Torque RPM | 3500 RPM | 3800 RPM |
| Engine Bore Size | 84 mm | 80.5 mm |
| Engine Stroke Size | 75 mm | 88.2 mm |
| Engine Compression Ratio | 10.5:1 | 10.5:1 |
| Top Speed | 235 km/hour | 205 km/hour |
| Acceleration 0-100mph | 7.3 seconds | 11.2 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1395 kg | 1375 kg |
| Vehicle Length | 4100 mm | 4600 mm |
| Vehicle Width | 1790 mm | 1800 mm |
| Vehicle Height | 1310 mm | 1470 mm |
| Wheelbase Size | 2580 mm | 2640 mm |
| Fuel Consumption Overall | 8.9 L/100km | 7.9 L/100km |
| Fuel Tank Capacity | 55 L | 61 L |
