Mirror Link is an interoperability standard that allows mobile devices like smartphones to integrate with a car's infotainment system. It transforms smartphones into automotive platforms, hosting apps on the phone but allowing interaction through the car's controls. The standard was developed by the Car Connectivity Consortium to provide a simple way to connect any device to any car. It uses a Terminal Mode architecture where a phone acts as a server and the car head unit as a client to replicate phone apps and services into the vehicle. Major car manufacturers, phone brands, and infotainment makers have adopted Mirror Link to give consumers access to their smartphone apps in compatible cars and devices.