2007 Chevrolet HHR vs. 2010 Hummer H3
To start off, 2010 Hummer H3 is newer by 3 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 3,653 cc (5 cylinders), 2010 Hummer H3 is equipped with a bigger engine. In terms of performance, 2010 Hummer H3 (239 HP @ 5800 RPM) has 64 more horse power than 2007 Chevrolet HHR. (175 HP @ 6200 RPM) In normal driving conditions, 2010 Hummer H3 should accelerate faster than 2007 Chevrolet HHR.
Because 2010 Hummer H3 is four wheel drive (4WD), it will have significant more traction and grip than 2007 Chevrolet HHR. In wet, icy, snow, or gravel driving conditions, 2010 Hummer H3 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 Hummer H3 (327 Nm @ 4600 RPM) has 103 more torque (in Nm) than 2007 Chevrolet HHR. (224 Nm @ 5000 RPM). This means 2010 Hummer H3 will have an easier job in driving up hills or pulling heavy equipment than 2007 Chevrolet HHR. 2007 Chevrolet HHR has automatic transmission and 2010 Hummer H3 has manual transmission. 2010 Hummer H3 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Chevrolet HHR will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 Chevrolet HHR | 2010 Hummer H3 | |
| Make | Chevrolet | Hummer |
| Model | HHR | H3 |
| Year Released | 2007 | 2010 |
| Body Type | Hatchback | SUV |
| Engine Position | Front | Front |
| Engine Size | 2397 cc | 3653 cc |
| Engine Cylinders | 4 cylinders | 5 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 175 HP | 239 HP |
| Engine RPM | 6200 RPM | 5800 RPM |
| Torque | 224 Nm | 327 Nm |
| Torque RPM | 5000 RPM | 4600 RPM |
| Engine Compression Ratio | 10.5:1 | 10.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | 4WD |
| Transmission Type | Automatic | Manual |
| Vehicle Length | 4440 mm | 5410 mm |
| Vehicle Width | 1740 mm | 1910 mm |
| Vehicle Height | 1570 mm | 1840 mm |
| Wheelbase Size | 2630 mm | 3420 mm |
