2001 Alfa Romeo Centauri vs. 2006 Fiat Siena
To start off, 2006 Fiat Siena is newer by 5 year(s). Which means there will be less support and parts availability for 2001 Alfa Romeo Centauri. In addition, the cost of maintenance, including insurance, on 2001 Alfa Romeo Centauri would be higher. At 2,959 cc (6 cylinders), 2001 Alfa Romeo Centauri is equipped with a bigger engine. In terms of performance, 2001 Alfa Romeo Centauri (105 HP @ 4000 RPM) has 37 more horse power than 2006 Fiat Siena. (68 HP @ 4600 RPM). In normal driving conditions, 2001 Alfa Romeo Centauri should accelerate faster than 2006 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2006 Fiat Siena weights approximately 230 kg more than 2001 Alfa Romeo Centauri.
Because 2001 Alfa Romeo Centauri is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2001 Alfa Romeo Centauri. However, in wet, icy, snow, or gravel driving conditions, 2006 Fiat Siena, being front wheel drive (FWD), will offer much better control with better grip. 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, 2001 Alfa Romeo Centauri (260 Nm) has 124 more torque (in Nm) than 2006 Fiat Siena. (136 Nm). This means 2001 Alfa Romeo Centauri will have an easier job in driving up hills or pulling heavy equipment than 2006 Fiat Siena.
Compare all specifications:
| 2001 Alfa Romeo Centauri | 2006 Fiat Siena | |
| Make | Alfa Romeo | Fiat |
| Model | Centauri | Siena |
| Year Released | 2001 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 2959 cc | 1697 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 105 HP | 68 HP |
| Engine RPM | 4000 RPM | 4600 RPM |
| Torque | 260 Nm | 136 Nm |
| Engine Bore Size | 93 mm | 82.6 mm |
| Engine Stroke Size | 72.6 mm | 79.2 mm |
| Drive Type | Rear | Front |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1415 kg | 1645 kg |
| Vehicle Length | 3690 mm | 4000 mm |
| Vehicle Height | 990 mm | 1700 mm |
| Wheelbase Size | 2410 mm | 2550 mm |
