most hotwheels/matchbox are 1/64 scale, just as bit char-g.. but on the downside, bitchar-g is a “super deformed” 1/64 scale, with a MUCH shorter wheelbase. As such, 2 options exist:
Cut a existing body in 3 parts, remove the center spacing, and glue back together to match the short chassis of bit char-g.
Extend the chassis to fit the 1/64 scale bodies.
I’ve been working on the latter option particuarily, but some have shortened their matchbox diecast to fit…
On a different field, if you don’t want to work with diecast, many department stores sell VERY CHEAP (quality and price) 1/64 plastic cars, which are easy to work with in terms of the first method- My local walmart sells 4$ “playsets” of police and military, yielding about 4 bodies per box, police cars, unmarked cars (after a paintjob- look pretty decent), hummers, and some wierd trucks… since the entire “toy car” business is dominated with diecasts, it makes our job that much harder.
You might also consider a thin vacuuform of a matchbox if you can find rigid enough plastic, although some parts will have to be added afterwards- mirrors, overhangs, etc…
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