Any Ideas what font this is?

Bobby H

Arial Sucks.
Hold on with the silly Brands of the World nonsense, please. BOTW often has logos of suspect quality. User beware.

In the case of AutoNation, it took me only a few clicks to find official corporate artwork, in EPS format, right on the AutoNation website.
Choose the "click for more brand images" link and it will take you to a form page where you can choose the brand you want (in this case, the AutoNation, brand). The form page gives you a number of options to choose on color and file type. Click the search button and it brings up a page with the relevant files ready to download.

Still, if you're doing a job for AutoNation -get in touch with the appropriate folks and ask for their logo use guidelines.