2005 Fiat Doblo vs. 2003 Fiat Siena
To start off, 2005 Fiat Doblo is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Fiat Siena. In addition, the cost of maintenance, including insurance, on 2003 Fiat Siena would be higher. At 1,997 cc (4 cylinders), 2005 Fiat Doblo is equipped with a bigger engine. In terms of performance, 2005 Fiat Doblo (62 HP @ 4500 RPM) has 3 more horse power than 2003 Fiat Siena. (59 HP @ 5200 RPM). In normal driving conditions, 2005 Fiat Doblo should accelerate faster than 2003 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2005 Fiat Doblo weights approximately 260 kg more than 2003 Fiat Siena. 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 Fiat Doblo (118 Nm @ 2500 RPM) has 15 more torque (in Nm) than 2003 Fiat Siena. (103 Nm @ 2500 RPM). This means 2005 Fiat Doblo will have an easier job in driving up hills or pulling heavy equipment than 2003 Fiat Siena.
Compare all specifications:
| 2005 Fiat Doblo | 2003 Fiat Siena | |
| Make | Fiat | Fiat |
| Model | Doblo | Siena |
| Year Released | 2005 | 2003 |
| Body Type | Panel Van | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1997 cc | 1301 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 62 HP | 59 HP |
| Engine RPM | 4500 RPM | 5200 RPM |
| Torque | 118 Nm | 103 Nm |
| Torque RPM | 2500 RPM | 2500 RPM |
| Engine Bore Size | 82.1 mm | 70.8 mm |
| Engine Stroke Size | 90.4 mm | 78.9 mm |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1300 kg | 1040 kg |
| Wheelbase Size | 2660 mm | 2380 mm |
