We call them "plate vaults.". Plate is made of aluminum.
Nascar Number 20 Car Booster License Plate Checkered Flag Racing Motorsport Race
Nascar Maxwell House Coffee Booster License Plate Number 22 Car Sterling Martin
Bill Elliott Nascar Booster License Plate McDonald's Racing Ford Thunderbird Fan
1990's NASCAR #99 JEFF BURTON BOOSTER License Plate
Jeremy Mayfield Booster License Plate Nascar Number 19 Dodge Evernham Racing
Kyle Petty NASCAR Booster License Plate Frame Number 42 Racing Vintage METAL
