Single Upgrade - Coupon valid for a one time, one car group upgrade on an intermediate (group C) through a full-size four-door (group E) car. Maximum upgrade to premium (group G). Offer valid on daily, weekend, weekly and monthly rates only. The upgraded car is subject to vehicle availability at the time of rental and may not be available on some rates at some times. Up To 25% off - The savings of up to 25 % applies to Avis leisure weekly and weekend rates and is applicable only to the time and mileage charges of the rental. Offer does not apply to car group X. Taxes, concession recovery fees, vehicle license recovery fee, customer facility charges ($10/contract in CA) may apply and are extra.