the older guys will come up to tell you exactly what you want to know but giving you my point of view is that you can easy do all these things with a car pc similar to what you have in ur house but with mini itx mobos or you can take a linux based tablet and work with this.
i personally took the first option . it needs some more work to be done due to sizes but at that time this is what i knew. if i would build a new one i would go through linux based board....! ( just for testing ), but i am a fan of the saying "the bigger the better" on the pcs . so mini itx is waht i vote for.
what you are asking are simple enough. but as i told you before the older guys will light you up.
welcome at the forum
sorry i just saw the asus .....
the right answer wold be probably "what do you want to know ?" anyhow my apologies.
Probably what you need for starting is a frontend for controlling ur pc . it can do i think the most of the thigs you ve said.
you also need some hardware like gps obd adapters .