Popular on Evreward since 2005, Enterprise Rent-A-Car offers coupons, cash back rebates and rewards, with savings as high as 10% off. Enterprise Rent-A-Car discount coupons are rare, only available once or twice a year, but are often more valuable than similar merchants. Even when Enterprise Rent-A-Car doesn't have a coupon, you can always get up to 8% cash back, and other great rewards, with every purchase.