Appunto. Zero non è un carattere valido, così come la O, 1 e I

"The European Union has a similar regulation for VINs, but it is less stringent than the North American rule. European VINs are not required to include year, factory or vehicle attribute data. However, the two systems are compatible. While most countries have some form of VIN system that is compatible with the North American system, cars that are imported must have their VIN number entered into the MVR database along with enough information to explain what the codes are if the original VIN system differs from the ISO 3779 standard."

Pura e semplice curiosità
Altri brand lo indicano, Mazda no, sarei curioso di sapere quando è stata costruita...