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.
Analysts from the National Bureau of Economic research say that the current nation-wide recession began in December 2007. Unemployment reached 6.5% by election day 2008, and in some parts of the country already reached 10% and higher.he Recession of 2008 (also called the Recession of the late 2000's or the Great Recession) was a major worldwide economic downturn that began in 2008 and continued into 2010 and beyond. It was caused by the Financial Crisis of 2008; it was by far the worst recession since the Great Depression of the 1930s.