It would still be the same '69 Corvette.<quoted text>
Our uniqueness as humans dictate that the constructs in our minds are necessarily unique, even for things that translate to a shared reality.
My belief about the shape of a 1969 Corvette will differ from yours even if we've both seen one recently.
If it was something that did exist, and someone described it wrong, at least you could say that they were wrong. There's nothing to compare deity beliefs to except more deity beliefs. Would you draw arbitrary lines between them, none at all, or differentiate them based on whether or not they are identical?
Your insipid argument boils down to a claim that nothing can be known of a deity.
That's wrong, but even if true, says nothing about a deity existence.