2007 Chevrolet HHR vs. 2009 Fiat Siena
To start off, 2009 Fiat Siena is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Chevrolet HHR. In addition, the cost of maintenance, including insurance, on 2007 Chevrolet HHR would be higher. At 2,201 cc (4 cylinders), 2007 Chevrolet HHR is equipped with a bigger engine. In terms of performance, 2007 Chevrolet HHR (149 HP @ 5600 RPM) has 49 more horse power than 2009 Fiat Siena. (100 HP @ 5500 RPM). In normal driving conditions, 2007 Chevrolet HHR should accelerate faster than 2009 Fiat Siena.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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 Chevrolet HHR (206 Nm @ 4200 RPM) has 132 more torque (in Nm) than 2009 Fiat Siena. (74 Nm @ 5500 RPM). This means 2007 Chevrolet HHR will have an easier job in driving up hills or pulling heavy equipment than 2009 Fiat Siena.
Compare all specifications:
| 2007 Chevrolet HHR | 2009 Fiat Siena | |
| Make | Chevrolet | Fiat |
| Model | HHR | Siena |
| Year Released | 2007 | 2009 |
| Body Type | Hatchback | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2201 cc | 1581 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 149 HP | 100 HP |
| Engine RPM | 5600 RPM | 5500 RPM |
| Torque | 206 Nm | 74 Nm |
| Torque RPM | 4200 RPM | 5500 RPM |
| Engine Compression Ratio | 10.0:1 | 9.5:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 4480 mm | 3550 mm |
| Vehicle Width | 1760 mm | 1640 mm |
| Vehicle Height | 1610 mm | 1440 mm |
| Wheelbase Size | 2640 mm | 2380 mm |
| Fuel Consumption Overall | 9.4 L/100km | 8.2 L/100km |
| Fuel Tank Capacity | 61 L | 54 L |
