Your next new car could know where you went last night, how quickly you accelerated, how hard you braked, which phone you paired with it and whether your eyes were actually on the road
Here is something rather important that is probably buried three menus deep in your next car. Actually, scrub that: it may already be buried three menus deep in your current car, somewhere between the ambient-lighting colour selector and the setting that makes the dashboard bong furiously because you dared to glance at the heater controls it forced onto a touchscreen in the first place.