2007 Daihatsu Sirion vs. 2011 Alfa Romeo 159
To start off, 2011 Alfa Romeo 159 is newer by 4 year(s). Which means there will be less support and parts availability for 2007 Daihatsu Sirion. In addition, the cost of maintenance, including insurance, on 2007 Daihatsu Sirion would be higher. At 2,387 cc (5 cylinders), 2011 Alfa Romeo 159 is equipped with a bigger engine. In terms of performance, 2011 Alfa Romeo 159 (197 HP @ 4000 RPM) has 111 more horse power than 2007 Daihatsu Sirion. (86 HP @ 6000 RPM) In normal driving conditions, 2011 Alfa Romeo 159 should accelerate faster than 2007 Daihatsu Sirion. With that said, vehicle weight also plays an important factor in acceleration. 2011 Alfa Romeo 159 weights approximately 830 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, 2011 Alfa Romeo 159 (400 Nm @ 2000 RPM) has 280 more torque (in Nm) than 2007 Daihatsu Sirion. (120 Nm @ 3200 RPM). This means 2011 Alfa Romeo 159 will have an easier job in driving up hills or pulling heavy equipment than 2007 Daihatsu Sirion.
Compare all specifications:
| 2007 Daihatsu Sirion | 2011 Alfa Romeo 159 | |
| Make | Daihatsu | Alfa Romeo |
| Model | Sirion | 159 |
| Year Released | 2007 | 2011 |
| Body Type | Hatchback | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 1298 cc | 2387 cc |
| Engine Cylinders | 4 cylinders | 5 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 86 HP | 197 HP |
| Engine RPM | 6000 RPM | 4000 RPM |
| Torque | 120 Nm | 400 Nm |
| Torque RPM | 3200 RPM | 2000 RPM |
| Engine Bore Size | 72 mm | 82 mm |
| Engine Stroke Size | 79.7 mm | 90.4 mm |
| Engine Compression Ratio | 10.0:1 | 17.0:1 |
| Fuel Type | Gasoline | Diesel |
| Top Speed | 180 km/hour | 226 km/hour |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 925 kg | 1755 kg |
| Vehicle Length | 3610 mm | 4670 mm |
| Vehicle Width | 1670 mm | 1840 mm |
| Vehicle Height | 1560 mm | 1460 mm |
| Wheelbase Size | 2440 mm | 2710 mm |
| Fuel Consumption Overall | 5 L/100km | 7 L/100km |
| Fuel Tank Capacity | 40 L | 70 L |
