This is commonly done with street rods, trailers, etc. You take the vehicle and a whole stack of receipts (steel, wheels, tires, motor, axles, wiring, etc.) to DMV. They inspect it, keep the receipts, and put a tag on the frame that has an assigned vin number. Then it is licensed as an assembled vehicle. I would really like to try to do this with a Banshee and license it as a "car" to drive on the streets. In Oregon 3 wheels can be a motorcycle, but 4 wheels is a car. Would need windshield, wiper, fenders, turn signals, horn, speedo, and seat belt. Would be a lot of work, and DMV could still say GTFO when you show up with your "car".