2006 Daihatsu Sirion vs. 2009 Fiat Siena
To start off, 2009 Fiat Siena is newer by 3 year(s). Which means there will be less support and parts availability for 2006 Daihatsu Sirion. In addition, the cost of maintenance, including insurance, on 2006 Daihatsu Sirion would be higher. At 1,581 cc (4 cylinders), 2009 Fiat Siena is equipped with a bigger engine. In terms of performance, 2009 Fiat Siena (100 HP @ 5500 RPM) has 14 more horse power than 2006 Daihatsu Sirion. (86 HP @ 6000 RPM) In normal driving conditions, 2009 Fiat Siena should accelerate faster than 2006 Daihatsu Sirion. With that said, vehicle weight also plays an important factor in acceleration. 2009 Fiat Siena weights approximately 334 kg more than 2006 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 Daihatsu Sirion (120 Nm @ 3200 RPM) has 46 more torque (in Nm) than 2009 Fiat Siena. (74 Nm @ 5500 RPM). This means 2006 Daihatsu Sirion will have an easier job in driving up hills or pulling heavy equipment than 2009 Fiat Siena.
Compare all specifications:
| 2006 Daihatsu Sirion | 2009 Fiat Siena | |
| Make | Daihatsu | Fiat |
| Model | Sirion | Siena |
| Year Released | 2006 | 2009 |
| Body Type | Hatchback | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1298 cc | 1581 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 86 HP | 100 HP |
| Engine RPM | 6000 RPM | 5500 RPM |
| Torque | 120 Nm | 74 Nm |
| Torque RPM | 3200 RPM | 5500 RPM |
| Engine Bore Size | 72.1 mm | 86.4 mm |
| Engine Stroke Size | 79.7 mm | 67.4 mm |
| Engine Compression Ratio | 10.0:1 | 9.5:1 |
| 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 | 4 doors |
| Vehicle Weight | 740 kg | 1074 kg |
| Vehicle Length | 3400 mm | 3550 mm |
| Vehicle Height | 1250 mm | 1440 mm |
| Wheelbase Size | 2440 mm | 2380 mm |
| Fuel Consumption Overall | 4.8 L/100km | 8.2 L/100km |
| Fuel Tank Capacity | 40 L | 54 L |
