Calling the latest Mercedes-Benz SLK 55 AMG a roadster is a bit like describing a racing yacht as a boat, or referring to a fine Swartland shiraz as red wine: the generic description simply doesn’t do the actual execution justice. Yes, the SLK 55 AMG is compact. It only has two seats. And the roof folds down. But this is not your average, common-or-garden roadster, as DEON SCHOEMAN finds out.