2006 Fiat Siena vs. 2010 BMW X5
To start off, 2010 BMW X5 is newer by 4 year(s). Which means there will be less support and parts availability for 2006 Fiat Siena. In addition, the cost of maintenance, including insurance, on 2006 Fiat Siena would be higher. At 3,000 cc (6 cylinders), 2010 BMW X5 is equipped with a bigger engine. In terms of performance, 2010 BMW X5 (260 HP @ 6600 RPM) has 192 more horse power than 2006 Fiat Siena. (68 HP @ 4600 RPM) In normal driving conditions, 2010 BMW X5 should accelerate faster than 2006 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2010 BMW X5 weights approximately 615 kg more than 2006 Fiat Siena. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2010 BMW X5 is all wheel drive (AWD), it will have significant more traction and grip than 2006 Fiat Siena. In wet, icy, snow, or gravel driving conditions, 2010 BMW X5 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, 2010 BMW X5 (305 Nm @ 2750 RPM) has 169 more torque (in Nm) than 2006 Fiat Siena. (136 Nm @ 2500 RPM). This means 2010 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 2006 Fiat Siena. 2010 BMW X5 has automatic transmission and 2006 Fiat Siena has manual transmission. 2006 Fiat Siena will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2010 BMW X5 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 Fiat Siena | 2010 BMW X5 | |
| Make | Fiat | BMW |
| Model | Siena | X5 |
| Year Released | 2006 | 2010 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 1697 cc | 3000 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 68 HP | 260 HP |
| Engine RPM | 4600 RPM | 6600 RPM |
| Torque | 136 Nm | 305 Nm |
| Torque RPM | 2500 RPM | 2750 RPM |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Front | AWD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1645 kg | 2260 kg |
| Vehicle Length | 4000 mm | 4854 mm |
| Vehicle Height | 1700 mm | 1765 mm |
| Wheelbase Size | 2550 mm | 2934 mm |
| Fuel Tank Capacity | 47 L | 85 L |
