Founded in 1948, Avis quickly grew to become the second largest car rental company in the US. The best Avis deal is a complimentary membership to Avis Preferred; a program saving you time and money and access to exclusive deals just by signing up. Upon 12 rentals while enrolled in Avis Preferred, you qualify for Avis First, a rewards program with benefits like free 2 day weekend rentals, no blackouts and free upgrades when available. Avis coupons are numerous and offer percentage discounts off your entire rental or free upgrades.