Avis car rental is planing to offer a three-minute guarantee for its "Avis Preferred" members at all European locations. Within three minutes of entering the premises, these premium customers will be guaranteed to be done with the rental transaction; if the elapsed time is over the limit, the customer will be getting a €30 or £20 voucher in the mail. The company plans to continue its three-hour, 33-minute guarantee at all U.S. locations for the foreseeable future. [NewsPress]