How Many Miles are Included with the Rental? Silvercar by Audi May 05, 2019 05:39 Updated Your Silvercar rental includes unlimited miles at no extra charge. Related articles Are there any Geographical Restrictions? Can I rent a car at one Silvercar location and return it to another? What is included in the estimated price of my reservation? What do I do in case of accident, damage, or a roadside-assistance need? How do I view, modify or cancel a reservation?