2009 Daihatsu Sirion vs. 2008 Opel Vectra
To start off, 2009 Daihatsu Sirion is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Opel Vectra. In addition, the cost of maintenance, including insurance, on 2008 Opel Vectra would be higher. At 3,175 cc (6 cylinders), 2008 Opel Vectra is equipped with a bigger engine. In terms of performance, 2008 Opel Vectra (208 HP @ 6200 RPM) has 106 more horse power than 2009 Daihatsu Sirion. (102 HP @ 6000 RPM) In normal driving conditions, 2008 Opel Vectra should accelerate faster than 2009 Daihatsu Sirion. With that said, vehicle weight also plays an important factor in acceleration. 2008 Opel Vectra weights approximately 619 kg more than 2009 Daihatsu Sirion. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Daihatsu Sirion is four wheel drive (4WD), it will have significant more traction and grip than 2008 Opel Vectra. In wet, icy, snow, or gravel driving conditions, 2009 Daihatsu Sirion will offer significantly more control. 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, 2008 Opel Vectra (300 Nm @ 4000 RPM) has 168 more torque (in Nm) than 2009 Daihatsu Sirion. (132 Nm @ 4400 RPM). This means 2008 Opel Vectra will have an easier job in driving up hills or pulling heavy equipment than 2009 Daihatsu Sirion. 2008 Opel Vectra has automatic transmission and 2009 Daihatsu Sirion has manual transmission. 2009 Daihatsu Sirion will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 Opel Vectra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Daihatsu Sirion | 2008 Opel Vectra | |
| Make | Daihatsu | Opel |
| Model | Sirion | Vectra |
| Year Released | 2009 | 2008 |
| Body Type | Hatchback | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1495 cc | 3175 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 102 HP | 208 HP |
| Engine RPM | 6000 RPM | 6200 RPM |
| Torque | 132 Nm | 300 Nm |
| Torque RPM | 4400 RPM | 4000 RPM |
| Engine Bore Size | 72 mm | 87.5 mm |
| Engine Stroke Size | 91.8 mm | 88 mm |
| Engine Compression Ratio | 10.0:1 | 10.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 185 km/hour | 248 km/hour |
| Acceleration 0-100mph | 10.8 seconds | 7.5 seconds |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 905 kg | 1524 kg |
| Vehicle Length | 3640 mm | 4600 mm |
| Vehicle Width | 1670 mm | 1800 mm |
| Vehicle Height | 1560 mm | 1470 mm |
| Wheelbase Size | 2440 mm | 2710 mm |
| Fuel Consumption Overall | 6.2 L/100km | 10.1 L/100km |
| Fuel Tank Capacity | 40 L | 61 L |
