A method and system for measuring and analyzing in vehicle media consumption and user interaction with a vehicle through an in vehicle entertainment system located in the vehicle. The in vehicle entertainment system receives media content. The method and system monitors both the media content and user interaction with the vehicle with content and interaction measurement software stored in the storage of the head unit of the vehicle as a module on the in vehicle entertainment system. The content measurement software directly records data relative to the media content being played or user interaction, in real time, as a data set and transmits the data set relative to the media content being played and user interaction to at least one immutable distributed ledger. The data set includes at least the local time of the start of the media content or the user interaction and is hashed.