2008 Fiat Siena vs. 2012 BMW X3
To start off, 2012 BMW X3 is newer by 4 year(s). Which means there will be less support and parts availability for 2008 Fiat Siena. In addition, the cost of maintenance, including insurance, on 2008 Fiat Siena would be higher. At 1,995 cc (4 cylinders), 2012 BMW X3 is equipped with a bigger engine. In terms of performance, 2012 BMW X3 (182 HP @ 4000 RPM) has 76 more horse power than 2008 Fiat Siena. (106 HP @ 5500 RPM) In normal driving conditions, 2012 BMW X3 should accelerate faster than 2008 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2012 BMW X3 weights approximately 695 kg more than 2008 Fiat Siena. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2012 BMW X3 is all wheel drive (AWD), it will have significant more traction and grip than 2008 Fiat Siena. In wet, icy, snow, or gravel driving conditions, 2012 BMW X3 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, 2012 BMW X3 (380 Nm @ 1750 RPM) has 240 more torque (in Nm) than 2008 Fiat Siena. (140 Nm @ 4000 RPM). This means 2012 BMW X3 will have an easier job in driving up hills or pulling heavy equipment than 2008 Fiat Siena.
Compare all specifications:
| 2008 Fiat Siena | 2012 BMW X3 | |
| Make | Fiat | BMW |
| Model | Siena | X3 |
| Year Released | 2008 | 2012 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 1581 cc | 1995 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 106 HP | 182 HP |
| Engine RPM | 5500 RPM | 4000 RPM |
| Torque | 140 Nm | 380 Nm |
| Torque RPM | 4000 RPM | 1750 RPM |
| Engine Bore Size | 86.5 mm | 90 mm |
| Engine Stroke Size | 67.4 mm | 84 mm |
| Fuel Type | Gasoline | Diesel |
| Acceleration 0-100mph | 10.5 seconds | 8.5 seconds |
| Drive Type | Front | AWD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1095 kg | 1790 kg |
| Vehicle Length | 3550 mm | 4648 mm |
| Vehicle Width | 1640 mm | 1881 mm |
| Vehicle Height | 1490 mm | 1675 mm |
| Wheelbase Size | 2370 mm | 2810 mm |
| Fuel Consumption Overall | 8.2 L/100km | 5.6 L/100km |
| Fuel Tank Capacity | 47 L | 67 L |
