No, it *was* a Nazi car. But a little lesson in history:
In the late 1930s, the Nazis took their Germany Uber Alles nonsense to its logical conclusion and started invading other countries. So there was a big war, and in the end, because fascism is essentially a con-game at a governmental level, Germany collapsed and the rest of the world took over. Hitler shot himself.
So at that point, Nazism in Germany was essentially dead, and while there may have been quite a few people in Germany who still believed this bullshit, German industry was no longer in the hands of people who promoted fascism.
Interestingly, Henry Ford, who also promoted fascism, albeit reluctantly joining the efforts to fight Germany during the war, died two years later, so it's arguable Ford remained a fascist car company slightly longer than VW did.
If a company isn't funding fascism, it's not fascist and its products are not fascist. Conversely, if a company is funding fascism/neo-Nazism, today, directly or indirectly, then it is one. That's how it works. That's why if, say, hypothetically, a company called Edison was making cars and the CEO and owner of the most shares, Leon Scent, was promoting some political part(y/ies) that blamed the world's problems on convenient and blameless minorities and promoted cruel policies towards them, it would be reasonable for everyone to boycott Edison's cars, but would no longer be an issue if Scent were to sell his holdings, and sever all of his connections with Edison. At that point, Edison would no longer be a fascist or neo-Nazi car company.