Well, I'll take the Audi. And according to someone who was bragging about how great Tesla does it (with all their software updates I will not insist that my experience several years ago is indicative of today's UX) claimed that you need to switch to the right screen, select correct user profile, and press a button from there. And even if it is, in today's software revision, a top-level UI element that's always present, it's still located on the bloody center screen that you can reach only after you've squeezed yourself into the seat.
Seriously, I am not really going to take seriously any claims from anyone who says that a touchscreen in a moving vehicle is a good idea. This is an idea that is absolutely ridiculous on its face.