Usually powertrain is used to refer to simply the engine and transmission, including the other components only if they are integral to the transmission. A motor vehicle's driveline or drivetrain consists of the parts of the powertrain excluding the engine and transmission. It is the portion of a vehicle, after the transmission, that changes depending on whether a vehicle is front-wheel, rear-wheel, or four-wheel drive, or less-common six-wheel or eight-wheel drive.
The Great Recessionâwhich officially lasted from December 2007 to June 2009âbegan with the bursting of an 8 trillion dollar housing bubble. The resulting loss of wealth led to sharp cutbacks in consumer spending.
The Great Recession is a term used to describe the general economic decline observed in world markets around the end of the first decade of the 21st century. The Great Recession and the Contradictions of Contemporary Capitalism