No, memberships are for named users, personal and non-interchangeable. Only the subscriber can drive the Bluecar. If you lend your badge to someone or borrow a badge from a third party, you will still be responsible for the car and you will not be insured. If you lend your BlueIndy badge to a third party, your membership will be terminated immediately and you will be banned from using the service for 6 months, except if the badge has been stolen and the theft reported to the police.