2006 Alfa Romeo 159 vs. 2007 Daihatsu Sirion
To start off, 2007 Daihatsu Sirion is newer by 1 year(s). Which means there will be less support and parts availability for 2006 Alfa Romeo 159. In addition, the cost of maintenance, including insurance, on 2006 Alfa Romeo 159 would be higher. At 2,198 cc (4 cylinders), 2006 Alfa Romeo 159 is equipped with a bigger engine. In terms of performance, 2006 Alfa Romeo 159 (182 HP @ 6500 RPM) has 81 more horse power than 2007 Daihatsu Sirion. (101 HP @ 3600 RPM). In normal driving conditions, 2006 Alfa Romeo 159 should accelerate faster than 2007 Daihatsu Sirion. With that said, vehicle weight also plays an important factor in acceleration. 2006 Alfa Romeo 159 weights approximately 675 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, 2006 Alfa Romeo 159 (230 Nm @ 4500 RPM) has 90 more torque (in Nm) than 2007 Daihatsu Sirion. (140 Nm @ 4600 RPM). This means 2006 Alfa Romeo 159 will have an easier job in driving up hills or pulling heavy equipment than 2007 Daihatsu Sirion.
Compare all specifications:
| 2006 Alfa Romeo 159 | 2007 Daihatsu Sirion | |
| Make | Alfa Romeo | Daihatsu |
| Model | 159 | Sirion |
| Year Released | 2006 | 2007 |
| Body Type | Station Wagon | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2198 cc | 1298 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 182 HP | 101 HP |
| Engine RPM | 6500 RPM | 3600 RPM |
| Torque | 230 Nm | 140 Nm |
| Torque RPM | 4500 RPM | 4600 RPM |
| Engine Bore Size | 86.1 mm | 72 mm |
| Engine Stroke Size | 94.6 mm | 79.7 mm |
| Engine Compression Ratio | 11.3:1 | 10.0:1 |
| Fuel Type | Gasoline - Premium | 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 | 1615 kg | 940 kg |
| Vehicle Length | 4670 mm | 3610 mm |
| Vehicle Width | 1840 mm | 1560 mm |
| Vehicle Height | 1460 mm | 1670 mm |
| Wheelbase Size | 2710 mm | 2440 mm |
| Fuel Tank Capacity | 70 L | 40 L |
