The passenger vehicle is quietly becoming a multi-tenant asset. Peer-to-peer carsharing, subscription fleets, and micro-fleet operators are putting a rotating cast of drivers behind the wheel of the same connected vehicle — sometimes several in a single week. Yet nearly every connected vehicle data model, consent framework, and in-vehicle commerce flow in production today still assumes one vehicle, one owner, one persistent profile. That assumption is the single biggest blocker to deliver genuinely useful mobility services in shared vehicles. This session takes an industry-wide look at what changes when identity becomes transient. It examines the growth trajectory of shared-vehicle models and the rise of multi-vehicle hosts — operators who look far more like small commercial fleets than private owners — and argues their requirements are converging with the commercial fleet agenda COVESA already has underway. It then makes the case that the invehicle digital experience, delivered through a guided virtual agent at the moment the driver enters the car, is the practical mechanism for binding a personalized service profile to a vehicle for the duration of a trip and cleanly releasing it afterward. Finally, it looks at the economics: tolling, parking, EV charging, fueling, and low-emission-zone access are the most friction-laden moments of a shared trip and the least monetized — a shared opportunity across OEMs, mobility platforms, and service providers that will only scale on common signals and a common consent model.