2003 Alfa Romeo 156 vs. 2005 Fiat Siena
To start off, 2005 Fiat Siena is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Alfa Romeo 156. In addition, the cost of maintenance, including insurance, on 2003 Alfa Romeo 156 would be higher. At 1,598 cc (4 cylinders), 2003 Alfa Romeo 156 is equipped with a bigger engine. In terms of performance, 2005 Fiat Siena (124 HP @ 4000 RPM) has 6 more horse power than 2003 Alfa Romeo 156. (118 HP @ 6200 RPM) In normal driving conditions, 2005 Fiat Siena should accelerate faster than 2003 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2003 Alfa Romeo 156 weights approximately 170 kg more than 2005 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, 2003 Alfa Romeo 156 (146 Nm @ 4200 RPM) has 6 more torque (in Nm) than 2005 Fiat Siena. (140 Nm @ 4000 RPM). This means 2003 Alfa Romeo 156 will have an easier job in driving up hills or pulling heavy equipment than 2005 Fiat Siena.
Compare all specifications:
| 2003 Alfa Romeo 156 | 2005 Fiat Siena | |
| Make | Alfa Romeo | Fiat |
| Model | 156 | Siena |
| Year Released | 2003 | 2005 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1598 cc | 1585 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 118 HP | 124 HP |
| Engine RPM | 6200 RPM | 4000 RPM |
| Torque | 146 Nm | 140 Nm |
| Torque RPM | 4200 RPM | 4000 RPM |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1265 kg | 1095 kg |
| Wheelbase Size | 2600 mm | 2450 mm |
| Fuel Tank Capacity | 63 L | 47 L |
