This is hands down the coolest Transformer costume that you'll never be able to find, because the guy built it himself.

A street performer in Ann Arbor, MI was recently caught on camera transforming from a robot to a car and back again all in a matter of seconds.

The man claims it took him five weeks and around $800 to create this one-of-a-kind costume. The coolest part is that the guy can really turn into a car and start rolling around.

It blew my mind the first time I saw how flawlessly it worked, so check it out for yourself above and if you know of any crazy/cool costumes send us a picture!