2008 BMW X3 vs. 2007 Fiat Siena
To start off, 2008 BMW X3 is newer by 1 year(s). Which means there will be less support and parts availability for 2007 Fiat Siena. In addition, the cost of maintenance, including insurance, on 2007 Fiat Siena would be higher. At 2,494 cc (6 cylinders), 2008 BMW X3 is equipped with a bigger engine. In terms of performance, 2008 BMW X3 (189 HP @ 6000 RPM) has 121 more horse power than 2007 Fiat Siena. (68 HP @ 4600 RPM). In normal driving conditions, 2008 BMW X3 should accelerate faster than 2007 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2008 BMW X3 weights approximately 725 kg more than 2007 Fiat Siena. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 BMW X3 is four wheel drive (4WD), it will have significant more traction and grip than 2007 Fiat Siena. In wet, icy, snow, or gravel driving conditions, 2008 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, 2008 BMW X3 (246 Nm @ 3500 RPM) has 111 more torque (in Nm) than 2007 Fiat Siena. (135 Nm @ 2500 RPM). This means 2008 BMW X3 will have an easier job in driving up hills or pulling heavy equipment than 2007 Fiat Siena.
Compare all specifications:
| 2008 BMW X3 | 2007 Fiat Siena | |
| Make | BMW | Fiat |
| Model | X3 | Siena |
| Year Released | 2008 | 2007 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 1697 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 189 HP | 68 HP |
| Engine RPM | 6000 RPM | 4600 RPM |
| Torque | 246 Nm | 135 Nm |
| Torque RPM | 3500 RPM | 2500 RPM |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 208 km/hour | 160 km/hour |
| Acceleration 0-100mph | 8.9 seconds | 16.3 seconds |
| Drive Type | 4WD | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1815 kg | 1090 kg |
| Vehicle Length | 4570 mm | 4140 mm |
| Vehicle Width | 1860 mm | 1640 mm |
| Vehicle Height | 1680 mm | 1440 mm |
| Wheelbase Size | 2800 mm | 2380 mm |
| Fuel Consumption Overall | 11.2 L/100km | 6.9 L/100km |
| Fuel Tank Capacity | 67 L | 47 L |
