2003 Opel Astra vs. 2011 Daihatsu Sirion
To start off, 2011 Daihatsu Sirion is newer by 8 year(s). Which means there will be less support and parts availability for 2003 Opel Astra. In addition, the cost of maintenance, including insurance, on 2003 Opel Astra would be higher. At 2,198 cc (4 cylinders), 2003 Opel Astra is equipped with a bigger engine. In terms of performance, 2003 Opel Astra (145 HP @ 5800 RPM) has 76 more horse power than 2011 Daihatsu Sirion. (69 HP @ 6000 RPM). In normal driving conditions, 2003 Opel Astra should accelerate faster than 2011 Daihatsu Sirion.
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, 2003 Opel Astra (203 Nm @ 4000 RPM) has 109 more torque (in Nm) than 2011 Daihatsu Sirion. (94 Nm @ 3600 RPM). This means 2003 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 2011 Daihatsu Sirion. 2003 Opel Astra has automatic transmission and 2011 Daihatsu Sirion has manual transmission. 2011 Daihatsu Sirion will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Opel Astra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Opel Astra | 2011 Daihatsu Sirion | |
| Make | Opel | Daihatsu |
| Model | Astra | Sirion |
| Year Released | 2003 | 2011 |
| Engine Position | Front | Front |
| Engine Size | 2198 cc | 998 cc |
| Engine Cylinders | 4 cylinders | 3 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 145 HP | 69 HP |
| Engine RPM | 5800 RPM | 6000 RPM |
| Torque | 203 Nm | 94 Nm |
| Torque RPM | 4000 RPM | 3600 RPM |
| Engine Bore Size | 86 mm | 71.1 mm |
| Engine Stroke Size | 94.6 mm | 84 mm |
| Engine Compression Ratio | 10.0:1 | 10.5:1 |
| Acceleration 0-100mph | 10 seconds | 13.9 seconds |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
