2006 Fiat Siena vs. 2004 Alfa Romeo 166
To start off, 2006 Fiat Siena is newer by 2 year(s). Which means there will be less support and parts availability for 2004 Alfa Romeo 166. In addition, the cost of maintenance, including insurance, on 2004 Alfa Romeo 166 would be higher. At 1,970 cc (6 cylinders), 2004 Alfa Romeo 166 is equipped with a bigger engine. In terms of performance, 2004 Alfa Romeo 166 (148 HP @ 6300 RPM) has 80 more horse power than 2006 Fiat Siena. (68 HP @ 4600 RPM) In normal driving conditions, 2004 Alfa Romeo 166 should accelerate faster than 2006 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2006 Fiat Siena weights approximately 225 kg more than 2004 Alfa Romeo 166.
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, 2004 Alfa Romeo 166 (182 Nm @ 3800 RPM) has 46 more torque (in Nm) than 2006 Fiat Siena. (136 Nm @ 2500 RPM). This means 2004 Alfa Romeo 166 will have an easier job in driving up hills or pulling heavy equipment than 2006 Fiat Siena.
Compare all specifications:
| 2006 Fiat Siena | 2004 Alfa Romeo 166 | |
| Make | Fiat | Alfa Romeo |
| Model | Siena | 166 |
| Year Released | 2006 | 2004 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1697 cc | 1970 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 68 HP | 148 HP |
| Engine RPM | 4600 RPM | 6300 RPM |
| Torque | 136 Nm | 182 Nm |
| Torque RPM | 2500 RPM | 3800 RPM |
| Acceleration 0-100mph | 16 seconds | 9.8 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1645 kg | 1420 kg |
| Vehicle Length | 4000 mm | 4730 mm |
| Vehicle Height | 1700 mm | 1420 mm |
| Wheelbase Size | 2550 mm | 2600 mm |
| Fuel Consumption Overall | 6.9 L/100km | 9.7 L/100km |
| Fuel Tank Capacity | 47 L | 69 L |
