The Mercedes-Benz CLS is no longer the only four-door coupe on the market, and in order to stay on top the German luxury car maker will have to keep improving their product. It is expected that the second generation CLS will be revealed in 2010 as a 2011 model. Spy photographers already caught the Mercedes testing, but with the heavy disguise it is difficult to tell what the final product will look like. So for now all we can go on is our imagination and the imaginations of the artists at Global Motors have come up with.

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