And that one from the blastolene brothers... Roadkill.... the blastolene bros. designed that after they got home from making the detroit diesel trike on Monster garage... they didnt think that the idea was really done right, and improved on the design when they got home and gave it thier own twist and made it more functional. Based on the same design.. the motor is an integral part of the frame, it actually bolts into the motor and tail shaft of the tranny... I watched a special on it on discovery's monster garage.. I think it was the homebuilt or backyard monster special. those dudes are hella smart and make some crazy stuff for sure