2003 Fiat Siena vs. 2005 Pontiac Montana
To start off, 2005 Pontiac Montana is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Fiat Siena. In addition, the cost of maintenance, including insurance, on 2003 Fiat Siena would be higher. At 3,491 cc (6 cylinders), 2005 Pontiac Montana is equipped with a bigger engine. In terms of performance, 2005 Pontiac Montana (200 HP) has 131 more horse power than 2003 Fiat Siena. (69 HP) In normal driving conditions, 2005 Pontiac Montana should accelerate faster than 2003 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2005 Pontiac Montana weights approximately 1001 kg more than 2003 Fiat Siena. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Pontiac Montana is four wheel drive (4WD), it will have significant more traction and grip than 2003 Fiat Siena. In wet, icy, snow, or gravel driving conditions, 2005 Pontiac Montana will offer significantly more control. 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 Pontiac Montana (301 Nm) has 173 more torque (in Nm) than 2003 Fiat Siena. (128 Nm). This means 2005 Pontiac Montana will have an easier job in driving up hills or pulling heavy equipment than 2003 Fiat Siena. 2005 Pontiac Montana has automatic transmission and 2003 Fiat Siena has manual transmission. 2003 Fiat Siena will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Pontiac Montana will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Fiat Siena | 2005 Pontiac Montana | |
| Make | Fiat | Pontiac |
| Model | Siena | Montana |
| Year Released | 2003 | 2005 |
| Body Type | Sedan | Minivan |
| Engine Position | Front | Front |
| Engine Size | 1747 cc | 3491 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 69 HP | 200 HP |
| Torque | 128 Nm | 301 Nm |
| Engine Bore Size | 82.7 mm | 94 mm |
| Engine Stroke Size | 79.2 mm | 84 mm |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 7 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1100 kg | 2101 kg |
| Vehicle Length | 4110 mm | 5230 mm |
| Vehicle Width | 1630 mm | 1840 mm |
| Vehicle Height | 1470 mm | 1840 mm |
| Wheelbase Size | 2380 mm | 3080 mm |
