A mobile device intermediary for vehicle adaptation is disclosed. A mobile device intermediary can access driver profile information and vehicle profile information from a remotely located device, determine vehicle adaptation information based on the driver profile information and vehicle profile information, and facilitate access to the vehicle adaptation information to facilitate adapting an aspect of a first vehicle. The mobile device intermediary can further receive other vehicle profile information related to a second vehicle associated with a driver profile and include the other vehicle profile information in determining the vehicle adaptation information. The vehicle adaptation information can be related to adapting a performance aspect of the first vehicle. The vehicle adaptation information can also be related to adapting an amenity aspect of the first vehicle. Vehicle adaption information can provide improved safety and driver comfort as a driver uses different vehicles, can be portable, and can be device independent.