2007 Porsche 911 vs. 2010 Chevrolet HHR
To start off, 2010 Chevrolet HHR is newer by 3 year(s). Which means there will be less support and parts availability for 2007 Porsche 911. In addition, the cost of maintenance, including insurance, on 2007 Porsche 911 would be higher. At 3,822 cc (6 cylinders), 2007 Porsche 911 is equipped with a bigger engine. In terms of performance, 2007 Porsche 911 (355 HP @ 6600 RPM) has 200 more horse power than 2010 Chevrolet HHR. (155 HP @ 6100 RPM). In normal driving conditions, 2007 Porsche 911 should accelerate faster than 2010 Chevrolet HHR. With that said, vehicle weight also plays an important factor in acceleration. 2007 Porsche 911 weights approximately 44 kg more than 2010 Chevrolet HHR. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Porsche 911 is four wheel drive (4WD), it will have significant more traction and grip than 2010 Chevrolet HHR. In wet, icy, snow, or gravel driving conditions, 2007 Porsche 911 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 Porsche 911 (400 Nm @ 4600 RPM) has 197 more torque (in Nm) than 2010 Chevrolet HHR. (203 Nm @ 4800 RPM). This means 2007 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 2010 Chevrolet HHR.
Compare all specifications:
| 2007 Porsche 911 | 2010 Chevrolet HHR | |
| Make | Porsche | Chevrolet |
| Model | 911 | HHR |
| Year Released | 2007 | 2010 |
| Body Type | Convertible | Hatchback |
| Engine Position | Rear | Front |
| Engine Size | 3822 cc | 2200 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | boxer | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 355 HP | 155 HP |
| Engine RPM | 6600 RPM | 6100 RPM |
| Torque | 400 Nm | 203 Nm |
| Torque RPM | 4600 RPM | 4800 RPM |
| Fuel Type | Gasoline - Premium | Flex Fuel |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1475 kg | 1431 kg |
| Vehicle Length | 4430 mm | 4475 mm |
| Vehicle Width | 1860 mm | 1755 mm |
| Vehicle Height | 1310 mm | 1603 mm |
| Wheelbase Size | 2360 mm | 2629 mm |
| Fuel Consumption Highway | 9.1 L/100km | 7.4 L/100km |
| Fuel Consumption City | 13.1 L/100km | 10.7 L/100km |
| Fuel Tank Capacity | 67 L | 61 L |
