The last stage in development of Hot Wheels Prototype vehicles before they hit the production line, look like this.
Called Final Engineering Pilot FEP cars.
Pre production prototype Hot Wheels cars are rare and don’t come up for sale very often.
We spotted this one for sale on ebay last year.
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Here's some related Buick items if you happen to be shopping for Buick merchandise! (if you can't see them, turn off your ad blocker!)
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