2005 BMW 645 vs. 2009 Chevrolet HHR
To start off, 2009 Chevrolet HHR is newer by 4 year(s). Which means there will be less support and parts availability for 2005 BMW 645. In addition, the cost of maintenance, including insurance, on 2005 BMW 645 would be higher. At 4,390 cc (8 cylinders), 2005 BMW 645 is equipped with a bigger engine. In terms of performance, 2005 BMW 645 (338 HP @ 6100 RPM) has 170 more horse power than 2009 Chevrolet HHR. (168 HP @ 6200 RPM). In normal driving conditions, 2005 BMW 645 should accelerate faster than 2009 Chevrolet HHR. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW 645 weights approximately 245 kg more than 2009 Chevrolet HHR. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 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 2005 BMW 645. However, in wet, icy, snow, or gravel driving conditions, 2009 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, 2005 BMW 645 (439 Nm @ 3600 RPM) has 217 more torque (in Nm) than 2009 Chevrolet HHR. (222 Nm @ 4800 RPM). This means 2005 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2009 Chevrolet HHR.
Compare all specifications:
| 2005 BMW 645 | 2009 Chevrolet HHR | |
| Make | BMW | Chevrolet |
| Model | 645 | HHR |
| Year Released | 2005 | 2009 |
| Body Type | Coupe | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 4390 cc | 2399 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 338 HP | 168 HP |
| Engine RPM | 6100 RPM | 6200 RPM |
| Torque | 439 Nm | 222 Nm |
| Torque RPM | 3600 RPM | 4800 RPM |
| Engine Bore Size | 92 mm | 88 mm |
| Engine Stroke Size | 83 mm | 98 mm |
| Engine Compression Ratio | 10.5:1 | 10.4:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 250 km/hour | 180 km/hour |
| Acceleration 0-100mph | 5.6 seconds | 9.1 seconds |
| Drive Type | Rear | Front |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1715 kg | 1470 kg |
| Vehicle Length | 4830 mm | 3380 mm |
| Vehicle Width | 1860 mm | 1760 mm |
| Vehicle Height | 1380 mm | 1610 mm |
| Wheelbase Size | 2790 mm | 2640 mm |
| Fuel Consumption Highway | 9.4 L/100km | 8.4 L/100km |
| Fuel Consumption Overall | 11.8 L/100km | 8.6 L/100km |
| Fuel Tank Capacity | 70 L | 61 L |
