My first thought was who in their right mind would wish to preserve this, then the idea about putting it in a Holocaust museum made sense.
Mercedes, like most German companies, were in it up to their necks with the Nazis and used thousands of concentration camp slaves to manufacture their vehicles, many of whom were worked to death, or if incapable of working, were shipped back to a concentration camp to be gassed. Needs must and all that, but a discussion of all this is essential - the story must be told, ambiguities and all, so that those were the victims get their story told too.
My former employer, Dresdner Bank, handled all the melmer gold - the jewellery and gold teeth melted down from the Jews and others gassed. It also was given confiscated banks in conquerered territory, whilst the Deutsche Bank got the Jewish banks within Germany - that's why it remains much larger, as Dresdner lost all its foreign acquisitions, while in Germany, Deutsche hung on.
Anybody who wants a good starting point on the German war economy please read Adam Tooze's The Wages of Destruction. The notion that it was all the fault of the evil Nazis and everyone else just kept their heads down is unsustainable.