2009 Chevrolet HHR vs. 2007 Opel Astra
To start off, 2009 Chevrolet HHR is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Opel Astra. In addition, the cost of maintenance, including insurance, on 2007 Opel Astra would be higher. At 2,399 cc (4 cylinders), 2009 Chevrolet HHR is equipped with a bigger engine. In terms of performance, 2009 Chevrolet HHR (168 HP @ 6200 RPM) has 79 more horse power than 2007 Opel Astra. (89 HP @ 5600 RPM). In normal driving conditions, 2009 Chevrolet HHR should accelerate faster than 2007 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2009 Chevrolet HHR weights approximately 240 kg more than 2007 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2009 Chevrolet HHR (222 Nm @ 4800 RPM) has 97 more torque (in Nm) than 2007 Opel Astra. (125 Nm @ 4000 RPM). This means 2009 Chevrolet HHR will have an easier job in driving up hills or pulling heavy equipment than 2007 Opel Astra.
Compare all specifications:
| 2009 Chevrolet HHR | 2007 Opel Astra | |
| Make | Chevrolet | Opel |
| Model | HHR | Astra |
| Year Released | 2009 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 2399 cc | 1364 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 168 HP | 89 HP |
| Engine RPM | 6200 RPM | 5600 RPM |
| Torque | 222 Nm | 125 Nm |
| Torque RPM | 4800 RPM | 4000 RPM |
| Engine Compression Ratio | 10.4:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 180 km/hour | 173 km/hour |
| Acceleration 0-100mph | 9.1 seconds | 13.7 seconds |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1470 kg | 1230 kg |
| Vehicle Length | 3380 mm | 4260 mm |
| Vehicle Width | 1760 mm | 1760 mm |
| Vehicle Height | 1610 mm | 1470 mm |
| Wheelbase Size | 2640 mm | 2620 mm |
| Fuel Consumption Overall | 8.6 L/100km | 6.3 L/100km |
| Fuel Tank Capacity | 61 L | 52 L |
