2006 BMW 645 vs. 2007 Chevrolet HHR
To start off, 2007 Chevrolet HHR is newer by 1 year(s). Which means there will be less support and parts availability for 2006 BMW 645. In addition, the cost of maintenance, including insurance, on 2006 BMW 645 would be higher. At 4,398 cc (8 cylinders), 2006 BMW 645 is equipped with a bigger engine. In terms of performance, 2006 BMW 645 (328 HP @ 6100 RPM) has 179 more horse power than 2007 Chevrolet HHR. (149 HP @ 5600 RPM). In normal driving conditions, 2006 BMW 645 should accelerate faster than 2007 Chevrolet HHR.
Because 2006 BMW 645 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2006 BMW 645. However, in wet, icy, snow, or gravel driving conditions, 2007 Chevrolet HHR, being front wheel drive (FWD), will offer much better control with better grip. 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, 2006 BMW 645 (450 Nm @ 3600 RPM) has 244 more torque (in Nm) than 2007 Chevrolet HHR. (206 Nm @ 4200 RPM). This means 2006 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2007 Chevrolet HHR.
Compare all specifications:
| 2006 BMW 645 | 2007 Chevrolet HHR | |
| Make | BMW | Chevrolet |
| Model | 645 | HHR |
| Year Released | 2006 | 2007 |
| Body Type | Convertible | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 2201 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 328 HP | 149 HP |
| Engine RPM | 6100 RPM | 5600 RPM |
| Torque | 450 Nm | 206 Nm |
| Torque RPM | 3600 RPM | 4200 RPM |
| Engine Compression Ratio | 10.0:1 | 10.0:1 |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Length | 4830 mm | 4480 mm |
| Vehicle Width | 1860 mm | 1760 mm |
| Vehicle Height | 1380 mm | 1610 mm |
| Wheelbase Size | 2790 mm | 2640 mm |
| Fuel Consumption Overall | 12.8 L/100km | 9.4 L/100km |
| Fuel Tank Capacity | 70 L | 61 L |
