LEGO Technic motorized(RC) back Vampire GT

This back vampire is not design by me.Original designer: https://www.youtube.com/user/crowkillers introduction of lego Vampire GT: https://www.youtube.com/watch?v=N_fRjX_LLeQ I only change it in RC(motorized). 100% in LEGO,This is not a LEGO set,No instruction available. Photo:coming soon! P.S: Music by: Skript http://www.youtube.com/user/theoffica... Audio Track: When We're Alone