Every once in a while Nissan gives us privileged access to what goes on in the far extent of its corporate brain. You see, Nissan is far from a conventional car company. Despite its mainstream success, it actually plays by quite an odd set of rules. Periods of apparent conformity are interspersed with bursts of what can only be described as automotive eccentricity. The Nissan Cube, sold in small number here between 2009 and 2011, is in fact far from Nissan's most left field offering, but proved too alternative for most target buyers. Here's what to look for if you're interested in picking up a used example.