2009 Daihatsu Sirion vs. 2007 Opel Astra
To start off, 2009 Daihatsu Sirion is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Opel Astra. In addition, the cost of maintenance, including insurance, on 2007 Opel Astra would be higher. At 1,998 cc (4 cylinders), 2007 Opel Astra is equipped with a bigger engine. In terms of performance, 2007 Opel Astra (237 HP @ 5600 RPM) has 135 more horse power than 2009 Daihatsu Sirion. (102 HP @ 6000 RPM) In normal driving conditions, 2007 Opel Astra should accelerate faster than 2009 Daihatsu Sirion. With that said, vehicle weight also plays an important factor in acceleration. 2007 Opel Astra weights approximately 492 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 2007 Opel Astra. 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, 2007 Opel Astra (320 Nm @ 2400 RPM) has 182 more torque (in Nm) than 2009 Daihatsu Sirion. (138 Nm @ 4400 RPM). This means 2007 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 2009 Daihatsu Sirion. 2009 Daihatsu Sirion has automatic transmission and 2007 Opel Astra has manual transmission. 2007 Opel Astra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Daihatsu Sirion will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Daihatsu Sirion | 2007 Opel Astra | |
| Make | Daihatsu | Opel |
| Model | Sirion | Astra |
| Year Released | 2009 | 2007 |
| Body Type | Hatchback | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1495 cc | 1998 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 102 HP | 237 HP |
| Engine RPM | 6000 RPM | 5600 RPM |
| Torque | 138 Nm | 320 Nm |
| Torque RPM | 4400 RPM | 2400 RPM |
| Engine Bore Size | 72 mm | 86 mm |
| Engine Stroke Size | 91.8 mm | 86 mm |
| Engine Compression Ratio | 10.0:1 | 8.8:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 180 km/hour | 244 km/hour |
| Acceleration 0-100mph | 11.1 seconds | 6.4 seconds |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 3 doors |
| Vehicle Weight | 906 kg | 1398 kg |
| Vehicle Length | 3640 mm | 4300 mm |
| Vehicle Width | 1670 mm | 1760 mm |
| Vehicle Height | 1560 mm | 1410 mm |
| Wheelbase Size | 2440 mm | 2620 mm |
| Fuel Consumption Overall | 6.7 L/100km | 9.2 L/100km |
| Fuel Tank Capacity | 40 L | 52 L |
