Firstly, I agree with others about Mazda, Not all locations do all brands, but combined I suspect there are only a few super-expensive brands that Hertz don't rent out. Each location will vary somewhat, especially between countries.

And now, hopefully, a favour for a favour.... I've done the forms and membership but don't anticipate renting that often so would want the IHG points at 1500 for booking direct via IHG and the daily 500 points. But I can't find how to book on IHG. Is this bit running yet, or is it another of IHGs coming-soon-but-don't-know-when tricks?