2008 Alfa Romeo 166 vs. 2009 Fiat Siena
To start off, 2009 Fiat Siena is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Alfa Romeo 166. In addition, the cost of maintenance, including insurance, on 2008 Alfa Romeo 166 would be higher. At 3,177 cc (6 cylinders), 2008 Alfa Romeo 166 is equipped with a bigger engine. With that said, vehicle weight also plays an important factor in acceleration. 2008 Alfa Romeo 166 weights approximately 525 kg more than 2009 Fiat Siena.
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, 2008 Alfa Romeo 166 (289 Nm @ 4800 RPM) has 154 more torque (in Nm) than 2009 Fiat Siena. (135 Nm @ 2500 RPM). This means 2008 Alfa Romeo 166 will have an easier job in driving up hills or pulling heavy equipment than 2009 Fiat Siena.
Compare all specifications:
| 2008 Alfa Romeo 166 | 2009 Fiat Siena | |
| Make | Alfa Romeo | Fiat |
| Model | 166 | Siena |
| Year Released | 2008 | 2009 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3177 cc | 1697 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 237 HP | 0 HP |
| Torque | 289 Nm | 135 Nm |
| Torque RPM | 4800 RPM | 2500 RPM |
| Engine Compression Ratio | 10.0:1 | 20.3:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 245 km/hour | 160 km/hour |
| Acceleration 0-100mph | 7.4 seconds | 16.3 seconds |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1615 kg | 1090 kg |
| Vehicle Length | 4730 mm | 4140 mm |
| Vehicle Width | 1810 mm | 1640 mm |
| Vehicle Height | 1420 mm | 1440 mm |
| Wheelbase Size | 2710 mm | 2380 mm |
| Fuel Consumption Overall | 12.5 L/100km | 6.9 L/100km |
| Fuel Tank Capacity | 69 L | 47 L |
