2007 Fiat Idea vs. 2003 Fiat Siena
To start off, 2007 Fiat Idea is newer by 4 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 1,368 cc (4 cylinders), 2007 Fiat Idea is equipped with a bigger engine. In terms of performance, 2007 Fiat Idea (94 HP @ 5800 RPM) has 35 more horse power than 2003 Fiat Siena. (59 HP @ 5200 RPM). In normal driving conditions, 2007 Fiat Idea should accelerate faster than 2003 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2007 Fiat Idea weights approximately 110 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, 2007 Fiat Idea (128 Nm @ 4500 RPM) has 25 more torque (in Nm) than 2003 Fiat Siena. (103 Nm @ 2500 RPM). This means 2007 Fiat Idea will have an easier job in driving up hills or pulling heavy equipment than 2003 Fiat Siena.
Compare all specifications:
| 2007 Fiat Idea | 2003 Fiat Siena | |
| Make | Fiat | Fiat |
| Model | Idea | Siena |
| Year Released | 2007 | 2003 |
| Body Type | Hatchback | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1368 cc | 1301 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 94 HP | 59 HP |
| Engine RPM | 5800 RPM | 5200 RPM |
| Torque | 128 Nm | 103 Nm |
| Torque RPM | 4500 RPM | 2500 RPM |
| Engine Bore Size | 72 mm | 70.8 mm |
| Engine Stroke Size | 84 mm | 78.9 mm |
| 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 | 1150 kg | 1040 kg |
| Vehicle Length | 3940 mm | 4110 mm |
| Vehicle Width | 1700 mm | 1630 mm |
| Vehicle Height | 1670 mm | 1470 mm |
| Wheelbase Size | 2520 mm | 2380 mm |
