2003 Alfa Romeo 147 vs. 2009 Daihatsu Sirion
To start off, 2009 Daihatsu Sirion is newer by 6 year(s). Which means there will be less support and parts availability for 2003 Alfa Romeo 147. In addition, the cost of maintenance, including insurance, on 2003 Alfa Romeo 147 would be higher. At 3,178 cc (6 cylinders), 2003 Alfa Romeo 147 is equipped with a bigger engine. In terms of performance, 2003 Alfa Romeo 147 (247 HP @ 6200 RPM) has 145 more horse power than 2009 Daihatsu Sirion. (102 HP @ 6000 RPM). In normal driving conditions, 2003 Alfa Romeo 147 should accelerate faster than 2009 Daihatsu Sirion. With that said, vehicle weight also plays an important factor in acceleration. 2003 Alfa Romeo 147 weights approximately 360 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 2003 Alfa Romeo 147. 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, 2003 Alfa Romeo 147 (300 Nm @ 4800 RPM) has 168 more torque (in Nm) than 2009 Daihatsu Sirion. (132 Nm @ 4400 RPM). This means 2003 Alfa Romeo 147 will have an easier job in driving up hills or pulling heavy equipment than 2009 Daihatsu Sirion.
Compare all specifications:
| 2003 Alfa Romeo 147 | 2009 Daihatsu Sirion | |
| Make | Alfa Romeo | Daihatsu |
| Model | 147 | Sirion |
| Year Released | 2003 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 3178 cc | 1495 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 247 HP | 102 HP |
| Engine RPM | 6200 RPM | 6000 RPM |
| Torque | 300 Nm | 132 Nm |
| Torque RPM | 4800 RPM | 4400 RPM |
| Engine Bore Size | 93 mm | 72 mm |
| Engine Stroke Size | 78 mm | 91.8 mm |
| Engine Compression Ratio | 10.5:1 | 10.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Top Speed | 246 km/hour | 185 km/hour |
| Acceleration 0-100mph | 6.2 seconds | 10.8 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 3 doors | 5 doors |
| Vehicle Weight | 1265 kg | 905 kg |
| Vehicle Length | 4180 mm | 3640 mm |
| Vehicle Width | 1740 mm | 1670 mm |
| Vehicle Height | 1450 mm | 1560 mm |
| Wheelbase Size | 2710 mm | 2440 mm |
| Fuel Consumption Overall | 7.5 L/100km | 6.2 L/100km |
| Fuel Tank Capacity | 63 L | 40 L |
