2007 Daihatsu Sirion vs. 2007 Opel Astra
To start off, both 2007 Daihatsu Sirion and 2007 Opel Astra were released in the same year (2007). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 1,686 cc (4 cylinders), 2007 Opel Astra is equipped with a bigger engine. In terms of performance, 2007 Opel Astra (100 HP @ 4400 RPM) has 31 more horse power than 2007 Daihatsu Sirion. (69 HP @ 6000 RPM) In normal driving conditions, 2007 Opel Astra should accelerate faster than 2007 Daihatsu Sirion. With that said, vehicle weight also plays an important factor in acceleration. 2007 Opel Astra weights approximately 471 kg more than 2007 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, 2007 Opel Astra (240 Nm @ 2300 RPM) has 146 more torque (in Nm) than 2007 Daihatsu Sirion. (94 Nm @ 3600 RPM). This means 2007 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 2007 Daihatsu Sirion.
Compare all specifications:
| 2007 Daihatsu Sirion | 2007 Opel Astra | |
| Make | Daihatsu | Opel |
| Model | Sirion | Astra |
| Year Released | 2007 | 2007 |
| Body Type | Hatchback | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 998 cc | 1686 cc |
| Engine Cylinders | 3 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 69 HP | 100 HP |
| Engine RPM | 6000 RPM | 4400 RPM |
| Torque | 94 Nm | 240 Nm |
| Torque RPM | 3600 RPM | 2300 RPM |
| Engine Bore Size | 71 mm | 79 mm |
| Engine Stroke Size | 84 mm | 86 mm |
| Engine Compression Ratio | 10.5:1 | 18.4:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 160 km/hour | 182 km/hour |
| Acceleration 0-100mph | 13.9 seconds | 12.2 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 3 doors |
| Vehicle Weight | 894 kg | 1365 kg |
| Vehicle Length | 3610 mm | 4300 mm |
| Vehicle Width | 1670 mm | 1760 mm |
| Vehicle Height | 1560 mm | 1440 mm |
| Wheelbase Size | 2440 mm | 2620 mm |
| Fuel Consumption Overall | 5 L/100km | 5 L/100km |
| Fuel Tank Capacity | 40 L | 52 L |
