Silvercar, the all-Audi rental car company, is offering one free day on rentals of three or more days completed by November 25, 2015. All you have to do to activate the discount is enter promo code FREEAFTER3 when completing your reservation. Silvercar rates typically start at $59.
Silvercar has airport locations in Austin, Chicago (ORD), Dallas (DAL and DFW), Denver, Ft. Lauderdale, Los Angeles, Miami, Phoenix and San Francisco. They also have a facility in New York City (Manhattan).
A reminder that all Silvercar rentals include free GPS, free Wi-Fi, free Satellite Radio, free toll tracking, free roadside assistance and free Bluetooth pairing.