2003 Alfa Romeo 156 vs. 2008 Daihatsu Sirion
To start off, 2008 Daihatsu Sirion is newer by 5 year(s). Which means there will be less support and parts availability for 2003 Alfa Romeo 156. In addition, the cost of maintenance, including insurance, on 2003 Alfa Romeo 156 would be higher. At 1,598 cc (4 cylinders), 2003 Alfa Romeo 156 is equipped with a bigger engine. In terms of performance, 2003 Alfa Romeo 156 (118 HP @ 6200 RPM) has 49 more horse power than 2008 Daihatsu Sirion. (69 HP @ 6000 RPM). In normal driving conditions, 2003 Alfa Romeo 156 should accelerate faster than 2008 Daihatsu Sirion. With that said, vehicle weight also plays an important factor in acceleration. 2003 Alfa Romeo 156 weights approximately 375 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, 2003 Alfa Romeo 156 (146 Nm @ 4200 RPM) has 52 more torque (in Nm) than 2008 Daihatsu Sirion. (94 Nm @ 3600 RPM). This means 2003 Alfa Romeo 156 will have an easier job in driving up hills or pulling heavy equipment than 2008 Daihatsu Sirion.
Compare all specifications:
| 2003 Alfa Romeo 156 | 2008 Daihatsu Sirion | |
| Make | Alfa Romeo | Daihatsu |
| Model | 156 | Sirion |
| Year Released | 2003 | 2008 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1598 cc | 998 cc |
| Engine Cylinders | 4 cylinders | 3 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 118 HP | 69 HP |
| Engine RPM | 6200 RPM | 6000 RPM |
| Torque | 146 Nm | 94 Nm |
| Torque RPM | 4200 RPM | 3600 RPM |
| Engine Compression Ratio | 10.3:1 | 10.5:1 |
| Top Speed | 195 km/hour | 160 km/hour |
| Acceleration 0-100mph | 10.5 seconds | 14.2 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1265 kg | 890 kg |
| Vehicle Length | 4440 mm | 3610 mm |
| Vehicle Width | 1750 mm | 1670 mm |
| Vehicle Height | 1440 mm | 1560 mm |
| Wheelbase Size | 2600 mm | 2440 mm |
| Fuel Consumption Overall | 8.2 L/100km | 5 L/100km |
| Fuel Tank Capacity | 63 L | 40 L |
