There needs to be a App for iOS/WP that will comunicate telemetry & analysis data over the network to the devices are connected to that will work for PC, XB one, and PS4 and display the data on the phone/tablets screen.
There is a app that does something like this for War Thunder called War Thunder tactical map, the game has the ability to send out player locations and data over the network to a App on the phone/tablet. It works for PC amd PS4 (it would work with XB one if there was a version of war thunder on XB one).
I know that this would require that Project cars to send data over network, and would require a app to be made to show data on the phone/tablet screen.
This would make for a really nice companion App feature, as well as being able to do other things through a companion App.
There is already a stand alone telemetry & analysis App only for PC