once people see lambos can be bought with btc no one will ever say "what can you buy with a btc durrrr" again
Have you though about putting this one:
http://stage.draperuniversity.com/wp-content/uploads/2013/06/bitcoin-logo.pngon the doors of the car? Also the color is suitable.
It will be good a advertise.
People will wonder what the **** is this and those who don't know will google it.
