2005 Alfa Romeo Spider vs. 2006 Fiat Siena
To start off, 2006 Fiat Siena is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Alfa Romeo Spider. In addition, the cost of maintenance, including insurance, on 2005 Alfa Romeo Spider would be higher. At 3,179 cc (6 cylinders), 2005 Alfa Romeo Spider is equipped with a bigger engine. In terms of performance, 2005 Alfa Romeo Spider (247 HP @ 6200 RPM) has 147 more horse power than 2006 Fiat Siena. (100 HP @ 5500 RPM). In normal driving conditions, 2005 Alfa Romeo Spider should accelerate faster than 2006 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2006 Fiat Siena weights approximately 376 kg more than 2005 Alfa Romeo Spider.
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, 2005 Alfa Romeo Spider (300 Nm @ 4800 RPM) has 226 more torque (in Nm) than 2006 Fiat Siena. (74 Nm @ 5500 RPM). This means 2005 Alfa Romeo Spider will have an easier job in driving up hills or pulling heavy equipment than 2006 Fiat Siena.
Compare all specifications:
| 2005 Alfa Romeo Spider | 2006 Fiat Siena | |
| Make | Alfa Romeo | Fiat |
| Model | Spider | Siena |
| Year Released | 2005 | 2006 |
| Body Type | Roadster | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3179 cc | 1581 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 247 HP | 100 HP |
| Engine RPM | 6200 RPM | 5500 RPM |
| Torque | 300 Nm | 74 Nm |
| Torque RPM | 4800 RPM | 5500 RPM |
| Engine Compression Ratio | 10.5:1 | 9.5:1 |
| Acceleration 0-100mph | 6.6 seconds | 11.1 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1407 kg | 1783 kg |
| Vehicle Length | 4310 mm | 3830 mm |
| Vehicle Width | 1780 mm | 1640 mm |
| Vehicle Height | 1320 mm | 1440 mm |
| Wheelbase Size | 2550 mm | 2380 mm |
| Fuel Consumption Overall | 13.2 L/100km | 8 L/100km |
| Fuel Tank Capacity | 70 L | 54 L |
