2007 BMW X3 vs. 2005 Fiat Siena
To start off, 2007 BMW X3 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 2,993 cc (6 cylinders), 2007 BMW X3 is equipped with a bigger engine. In terms of performance, 2007 BMW X3 (283 HP @ 4400 RPM) has 159 more horse power than 2005 Fiat Siena. (124 HP @ 4000 RPM). In normal driving conditions, 2007 BMW X3 should accelerate faster than 2005 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW X3 weights approximately 855 kg more than 2005 Fiat Siena. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 BMW X3 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Fiat Siena. In wet, icy, snow, or gravel driving conditions, 2007 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, 2007 BMW X3 (580 Nm @ 1750 RPM) has 440 more torque (in Nm) than 2005 Fiat Siena. (140 Nm @ 4000 RPM). This means 2007 BMW X3 will have an easier job in driving up hills or pulling heavy equipment than 2005 Fiat Siena. 2007 BMW X3 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 BMW X3 will be easier to drive especially in heavy traffic.
Compare all specifications:
2007 BMW X3 | 2005 Fiat Siena | |
Make | BMW | Fiat |
Model | X3 | Siena |
Year Released | 2007 | 2005 |
Body Type | SUV | Sedan |
Engine Position | Front | Front |
Engine Size | 2993 cc | 1585 cc |
Engine Cylinders | 6 cylinders | 4 cylinders |
Engine Type | in-line | in-line |
Valves per Cylinder | 4 valves | 4 valves |
Horse Power | 283 HP | 124 HP |
Engine RPM | 4400 RPM | 4000 RPM |
Torque | 580 Nm | 140 Nm |
Torque RPM | 1750 RPM | 4000 RPM |
Engine Bore Size | 84 mm | 86.4 mm |
Engine Stroke Size | 88 mm | 67.4 mm |
Drive Type | 4WD | Front |
Transmission Type | Automatic | Manual |
Number of Seats | 5 seats | 5 seats |
Number of Doors | 5 doors | 4 doors |
Vehicle Weight | 1950 kg | 1095 kg |
Wheelbase Size | 2800 mm | 2450 mm |
Fuel Tank Capacity | 67 L | 47 L |