2003 Alfa Romeo 166 vs. 2001 Fiat Siena
To start off, 2003 Alfa Romeo 166 is newer by 2 year(s). Which means there will be less support and parts availability for 2001 Fiat Siena. In addition, the cost of maintenance, including insurance, on 2001 Fiat Siena would be higher. At 2,492 cc (6 cylinders), 2003 Alfa Romeo 166 is equipped with a bigger engine. In terms of performance, 2003 Alfa Romeo 166 (185 HP @ 6300 RPM) has 63 more horse power than 2001 Fiat Siena. (122 HP @ 5250 RPM). In normal driving conditions, 2003 Alfa Romeo 166 should accelerate faster than 2001 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2003 Alfa Romeo 166 weights approximately 91 kg more than 2001 Fiat Siena. 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, 2003 Alfa Romeo 166 (221 Nm) has 134 more torque (in Nm) than 2001 Fiat Siena. (87 Nm). This means 2003 Alfa Romeo 166 will have an easier job in driving up hills or pulling heavy equipment than 2001 Fiat Siena.
Compare all specifications:
| 2003 Alfa Romeo 166 | 2001 Fiat Siena | |
| Make | Alfa Romeo | Fiat |
| Model | 166 | Siena |
| Year Released | 2003 | 2001 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 1089 cc |
| Horse Power | 185 HP | 122 HP |
| Engine RPM | 6300 RPM | 5250 RPM |
| Torque | 221 Nm | 87 Nm |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1435 kg | 1344 kg |
