You'd buy this, and use it

I've often wondered why cars don't do this with phones. This Kickstarter project (hope it's real and can deliver) suggests that your phone should be the guts to your laptop. Plug and go. 

If they succeed, it should follow that cars could have simple built in functions and become all the more robust when you plug your phone into them. This and so much more is certainly the promise of Project Titan at Apple. Link.