I'd be completely lost with BEPO...
I used QWERTY US in 80-90, it was the only available keyboard on 8bit machine (Sinclair, Amstrad, Commodore, etc), then AZERTY in 90-00 because I had a PC, then moved to Québec so since ~2000 use QWERTY FR_CA. Because of all the switch and never learning how to type, I still type with like 2 fingers :)
I am using a simple application named "Car Scanner", on my phone, it connects via bluetooth to the $4 OBD2 dongle, and it works in Android Auto, can display all kind of info on the multimedia screen.