2008 BMW X6 vs. 2007 Fiat Siena
To start off, 2008 BMW X6 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 4,399 cc (8 cylinders), 2008 BMW X6 is equipped with a bigger engine. In terms of performance, 2008 BMW X6 (400 HP @ 5500 RPM) has 332 more horse power than 2007 Fiat Siena. (68 HP @ 4600 RPM). In normal driving conditions, 2008 BMW X6 should accelerate faster than 2007 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2008 BMW X6 weights approximately 1110 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 X6 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 X6 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 X6 (827 Nm @ 1800 RPM) has 692 more torque (in Nm) than 2007 Fiat Siena. (135 Nm @ 2500 RPM). This means 2008 BMW X6 will have an easier job in driving up hills or pulling heavy equipment than 2007 Fiat Siena. 2008 BMW X6 has automatic transmission and 2007 Fiat Siena has manual transmission. 2007 Fiat Siena will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 BMW X6 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2008 BMW X6 | 2007 Fiat Siena | |
| Make | BMW | Fiat |
| Model | X6 | Siena |
| Year Released | 2008 | 2007 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4399 cc | 1697 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 400 HP | 68 HP |
| Engine RPM | 5500 RPM | 4600 RPM |
| Torque | 827 Nm | 135 Nm |
| Torque RPM | 1800 RPM | 2500 RPM |
| Fuel Type | Gasoline | Diesel |
| Top Speed | 250 km/hour | 160 km/hour |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 2200 kg | 1090 kg |
| Vehicle Width | 1830 mm | 1640 mm |
