No. We discussed this in an older thread. Sixt likes to franchise overseas, but had to adapt to the reality that the way people use rental cars in America is fundamentally different. Ex, long distance one-way roadtrips in the summer are historically a big part of the culture, but are not easily supported by a franchise model.
Also, if Sixt feels it has to raise prices, it will have to contend with a new value proposition in the US, or rather a lack of it. Unlike some European countries, the US does not have laws restricting reward programs, and many American customers expect them.Merely offering the same cars and prices as competitors, without one-way capable rewards, not adding neighborhood store flexibility in more markets, etc is not a positive competitive differentiator and a reason to choose Sixt.