It depends on which location you rent from and when. Often, Enterprise will offer very low weekend deals during certain times of the year, especially in big cities. It's best to check their website and/or call the exact location where you're planning to rent to learn about their current specials.
I'm not with Enterprise I would not rent from Enterprise if they gave it to me for free I just don't like the company if you want a good deal you need to check with Hertz
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