If you're like us, the 2010 Toyota Prius has as much appeal as acid eyewash, but today Toyota's teasing a new, smaller, more lime-green (two-door perhaps?) mini-Prius dedicated-hybrid concept ahead of a 2010 Detroit Auto Show reveal.

Reports claim Toyota may build an environmentally-friendly rear-wheel-drive Toyota MR2 coupe utilizing the Toyota Prius Hybrid Synergy Drive. A Prius-based MR2? Yeah, that'd be the third horseman of the Carpocalypse.