2005 Alfa Romeo 156 vs. 2007 Daihatsu Sirion
To start off, 2007 Daihatsu Sirion is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Alfa Romeo 156. In addition, the cost of maintenance, including insurance, on 2005 Alfa Romeo 156 would be higher. At 1,598 cc (4 cylinders), 2005 Alfa Romeo 156 is equipped with a bigger engine. In terms of performance, 2005 Alfa Romeo 156 (118 HP @ 6500 RPM) has 32 more horse power than 2007 Daihatsu Sirion. (86 HP @ 6000 RPM). In normal driving conditions, 2005 Alfa Romeo 156 should accelerate faster than 2007 Daihatsu Sirion. With that said, vehicle weight also plays an important factor in acceleration. 2005 Alfa Romeo 156 weights approximately 325 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, 2005 Alfa Romeo 156 (147 Nm @ 4500 RPM) has 27 more torque (in Nm) than 2007 Daihatsu Sirion. (120 Nm @ 3200 RPM). This means 2005 Alfa Romeo 156 will have an easier job in driving up hills or pulling heavy equipment than 2007 Daihatsu Sirion.
Compare all specifications:
| 2005 Alfa Romeo 156 | 2007 Daihatsu Sirion | |
| Make | Alfa Romeo | Daihatsu |
| Model | 156 | Sirion |
| Year Released | 2005 | 2007 |
| Body Type | Station Wagon | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1598 cc | 1298 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 118 HP | 86 HP |
| Engine RPM | 6500 RPM | 6000 RPM |
| Torque | 147 Nm | 120 Nm |
| Torque RPM | 4500 RPM | 3200 RPM |
| Engine Bore Size | 82 mm | 72 mm |
| Engine Stroke Size | 75.7 mm | 79.7 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1250 kg | 925 kg |
| Vehicle Length | 4450 mm | 3610 mm |
| Vehicle Width | 1750 mm | 1670 mm |
| Vehicle Height | 1440 mm | 1560 mm |
| Wheelbase Size | 2710 mm | 2440 mm |
| Fuel Consumption Overall | 8.6 L/100km | 5 L/100km |
| Fuel Tank Capacity | 63 L | 40 L |
