Mystery Roadster Snapped in Slovenia, We Scratch Heads

European based reader Andrej sent us pics last night of a sleek and compact roadster caught in transport on a flatbed and it has us scratching our heads. The car is certainly a front engine, rear drive deal with healthy sized disc brakes all around and a single low-mounted grille (which seems to count out the Yes! Roadster). If it wasn't so small, we'd guess at a replacement for the now long-in-the-tooth Honda S2000, but that's just dreaming. One item throwing us off a bit is the polychromatic paint — why would anyone slather a test mule with a paint job that spendy?