One thing's for sure, General Motors is not very good at playing the real estate market. Last May the world's biggest automaker finally bought its world headquarters in downtown Detroit called the Renaissance Center for the sum of $626 million. It had initially bought into the complex of seven buildings back in 1996 for $75 million, but had continued leasing office space there until the purchase earlier this year. Here we are not five months later after the purchase and GM is reportedly considering selling the RenCen to raise $500 million fast.

One upside to a faltering real estate market is a plethora of good buys on property. General Motors took advantage of that fact by purchasing its Renaissance Center headquarters in Detroit for $626 million in cash. For another $200 million it picked up a couple of office buildings in Pontiac, too.