Anyway Sofia has some great go-karting venues available to satisfy your craving for speed. And even better they haven't yet heard of the fun destroying 'black flag'!

Racing against the locals, a private grand prix just for your party, or a Le Mans style endurance race can all be organised for your entertainment.  There is even a 3 tier podium and champagne available for at the end of the racing to celebrate leaving your mates in the dust. (Health Warning - Bulgarian Champagne is not for internal consumption.)