No, a repossession company in Indiana is not allowed to drive your vehicle for personal use or keep your property. According to Indiana law, a repossession company must take reasonable care of your vehicle and may only use it for the purpose of repossession and storage. The company is not allowed to drive your vehicle for personal use or allow anyone else to do so. The repossession company is also not allowed to take possession of your personal property that is not attached to the vehicle.
If you believe that a repossession company in Indiana has used your vehicle for personal use or kept your property, you should file a complaint with the Indiana Department of Financial Institutions.