2008 Daihatsu Sirion vs. 2006 Opel Vectra
To start off, 2008 Daihatsu Sirion is newer by 2 year(s). Which means there will be less support and parts availability for 2006 Opel Vectra. In addition, the cost of maintenance, including insurance, on 2006 Opel Vectra would be higher. At 3,175 cc (6 cylinders), 2006 Opel Vectra is equipped with a bigger engine. In terms of performance, 2006 Opel Vectra (208 HP @ 6200 RPM) has 122 more horse power than 2008 Daihatsu Sirion. (86 HP @ 6000 RPM) In normal driving conditions, 2006 Opel Vectra should accelerate faster than 2008 Daihatsu Sirion. With that said, vehicle weight also plays an important factor in acceleration. 2006 Opel Vectra weights approximately 685 kg more than 2008 Daihatsu Sirion. 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, 2006 Opel Vectra (300 Nm @ 4000 RPM) has 180 more torque (in Nm) than 2008 Daihatsu Sirion. (120 Nm @ 3200 RPM). This means 2006 Opel Vectra will have an easier job in driving up hills or pulling heavy equipment than 2008 Daihatsu Sirion.
Compare all specifications:
| 2008 Daihatsu Sirion | 2006 Opel Vectra | |
| Make | Daihatsu | Opel |
| Model | Sirion | Vectra |
| Year Released | 2008 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 1296 cc | 3175 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 86 HP | 208 HP |
| Engine RPM | 6000 RPM | 6200 RPM |
| Torque | 120 Nm | 300 Nm |
| Torque RPM | 3200 RPM | 4000 RPM |
| Engine Bore Size | 72 mm | 87.5 mm |
| Engine Stroke Size | 79.7 mm | 88 mm |
| Engine Compression Ratio | 10.0:1 | 10.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 175 km/hour | 239 km/hour |
| Acceleration 0-100mph | 9.6 seconds | 8.1 seconds |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 940 kg | 1625 kg |
| Vehicle Length | 3400 mm | 4830 mm |
| Vehicle Height | 1250 mm | 1510 mm |
| Wheelbase Size | 2440 mm | 2840 mm |
| Fuel Consumption Overall | 5.7 L/100km | 10.3 L/100km |
| Fuel Tank Capacity | 40 L | 60 L |
