2009 Fiat 500 vs. 2008 Fiat Siena
To start off, 2009 Fiat 500 is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Fiat Siena. In addition, the cost of maintenance, including insurance, on 2008 Fiat Siena would be higher. At 1,581 cc (4 cylinders), 2008 Fiat Siena is equipped with a bigger engine. In terms of performance, 2008 Fiat Siena (100 HP @ 5500 RPM) has 26 more horse power than 2009 Fiat 500. (74 HP @ 4000 RPM) In normal driving conditions, 2008 Fiat Siena should accelerate faster than 2009 Fiat 500. With that said, vehicle weight also plays an important factor in acceleration. 2008 Fiat Siena weights approximately 19 kg more than 2009 Fiat 500. 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, 2009 Fiat 500 (145 Nm @ 1500 RPM) has 71 more torque (in Nm) than 2008 Fiat Siena. (74 Nm @ 5500 RPM). This means 2009 Fiat 500 will have an easier job in driving up hills or pulling heavy equipment than 2008 Fiat Siena.
Compare all specifications:
| 2009 Fiat 500 | 2008 Fiat Siena | |
| Make | Fiat | Fiat |
| Model | 500 | Siena |
| Year Released | 2009 | 2008 |
| Body Type | Hatchback | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1248 cc | 1581 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 74 HP | 100 HP |
| Engine RPM | 4000 RPM | 5500 RPM |
| Torque | 145 Nm | 74 Nm |
| Torque RPM | 1500 RPM | 5500 RPM |
| Engine Bore Size | 69.6 mm | 86.4 mm |
| Engine Stroke Size | 82 mm | 67.4 mm |
| Engine Compression Ratio | 17.6:1 | 9.5:1 |
| Fuel Type | Diesel | Gasoline |
| Top Speed | 165 km/hour | 184 km/hour |
| Acceleration 0-100mph | 12.5 seconds | 11.5 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 3 doors | 4 doors |
| Vehicle Weight | 1055 kg | 1074 kg |
| Vehicle Length | 3550 mm | 3550 mm |
| Vehicle Width | 1630 mm | 1640 mm |
| Vehicle Height | 1490 mm | 1440 mm |
| Wheelbase Size | 2310 mm | 2380 mm |
| Fuel Consumption Overall | 4.2 L/100km | 8.2 L/100km |
| Fuel Tank Capacity | 35 L | 54 L |
