2005 Fiat Siena vs. 2007 GMC Sierra
To start off, 2007 GMC Sierra is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Fiat Siena. In addition, the cost of maintenance, including insurance, on 2005 Fiat Siena would be higher. At 5,999 cc (8 cylinders), 2007 GMC Sierra is equipped with a bigger engine. In terms of performance, 2007 GMC Sierra (300 HP @ 4400 RPM) has 176 more horse power than 2005 Fiat Siena. (124 HP @ 4000 RPM) In normal driving conditions, 2007 GMC Sierra should accelerate faster than 2005 Fiat Siena.
Let's talk about torque, 2007 GMC Sierra (488 Nm @ 4000 RPM) has 348 more torque (in Nm) than 2005 Fiat Siena. (140 Nm @ 4000 RPM). This means 2007 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2005 Fiat Siena. 2007 GMC Sierra has automatic transmission and 2005 Fiat Siena has manual transmission. 2005 Fiat Siena will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 GMC Sierra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Fiat Siena | 2007 GMC Sierra | |
| Make | Fiat | GMC |
| Model | Siena | Sierra |
| Year Released | 2005 | 2007 |
| Body Type | Sedan | Pickup |
| Engine Position | Front | Front |
| Engine Size | 1585 cc | 5999 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 124 HP | 300 HP |
| Engine RPM | 4000 RPM | 4400 RPM |
| Torque | 140 Nm | 488 Nm |
| Torque RPM | 4000 RPM | 4000 RPM |
| Engine Bore Size | 86.4 mm | 102 mm |
| Engine Stroke Size | 67.4 mm | 92 mm |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 6 seats |
| Number of Doors | 4 doors | 4 doors |
| Wheelbase Size | 2450 mm | 4250 mm |
| Fuel Tank Capacity | 47 L | 132 L |
