It boasted a "realistic, motion captured pit-crew", when in actuality all they did was put their hands on the wheels, then the guy on the jack would slide off as if he was on a pulley! Just bring your car back to your save place, park it in the garage and save your game. Golem is waiting for you. While, in the castles, he will end up on top of or in another room, on top of the castle entrance, or in an elevator below the castles entrance and stuck. First off you need the airship.
nest...