Even that one-off Exelero wasn't paid ... exclusive million-dollar Maybach coupes. The idea stemmed from Xenatec's existing business producing armored luxury cars for those with the means.

Maybach was an audacious idea - a Mercedes-Benz ... that was punctuated by nothing more exciting than the stillborn Exelero and Jay-Z and Kanye West attacking one with a blowtorch, we thought ...

Toyota S-FR and Maybach Exelero. Not every concept makes a name for itself, though, so it can also be fun to look back at previous car shows and remember the obscure concepts that were quickly ...