The 540K is certainly my favorite German car of that era, and I don't think that Leno would mind adding it to his collection. He has a lot of money, but who is to say how much he has available? 15-20 million is a lot of cabbage, even to the wealthy, and he just took a substantial pay cut. He might have to off a few Duesenbergs to buy this, and he may well like those better.
-MJS