2007 Fiat Siena vs. 2007 Hummer H2
To start off, both 2007 Fiat Siena and 2007 Hummer H2 were released in the same year (2007). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 5,999 cc (8 cylinders), 2007 Hummer H2 is equipped with a bigger engine. In terms of performance, 2007 Hummer H2 (325 HP @ 5200 RPM) has 253 more horse power than 2007 Fiat Siena. (72 HP @ 6000 RPM) In normal driving conditions, 2007 Hummer H2 should accelerate faster than 2007 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2007 Hummer H2 weights approximately 1833 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 2007 Hummer H2 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, 2007 Hummer H2 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 Hummer H2 (496 Nm @ 4000 RPM) has 394 more torque (in Nm) than 2007 Fiat Siena. (102 Nm @ 3250 RPM). This means 2007 Hummer H2 will have an easier job in driving up hills or pulling heavy equipment than 2007 Fiat Siena. 2007 Hummer H2 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. 2007 Hummer H2 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 Fiat Siena | 2007 Hummer H2 | |
| Make | Fiat | Hummer |
| Model | Siena | H2 |
| Year Released | 2007 | 2007 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 1242 cc | 5999 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 72 HP | 325 HP |
| Engine RPM | 6000 RPM | 5200 RPM |
| Torque | 102 Nm | 496 Nm |
| Torque RPM | 3250 RPM | 4000 RPM |
| Engine Bore Size | 70.9 mm | 101.6 mm |
| Engine Stroke Size | 78.9 mm | 91.9 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1070 kg | 2903 kg |
| Vehicle Length | 3830 mm | 5180 mm |
| Vehicle Width | 1640 mm | 2070 mm |
| Vehicle Height | 1440 mm | 2020 mm |
| Wheelbase Size | 2380 mm | 3120 mm |
| Fuel Consumption Overall | 7.8 L/100km | 13.8 L/100km |
| Fuel Tank Capacity | 54 L | 121 L |
