Just like posted above. I had the same exact situation & thought it was the rear main seal. Turned out to be oil seeping from the orange intake boots.
Actually took mine in for a warranty repair with that exact same symtom. Couldn't believe that much oil could leak out the intercooler boot.....down the engine.....past the starter and hit the ground. I thought it was a turbo seal leak. Dealer pulled all the plumbing loose........cleaned it up.......told me my air filter was either too restricted or that I had over oiled the element.
Tbar