The worst is the Tesla interface. It's great to look at and if you're sitting in the car parked, but if you're trying to drive it is terrible. To be honest, stuff like this should be legislated away, it's too dangerous.

Even something as mundane as turning on the fan requires several seconds of concentration because it's al. It's not like a regular car with buttons and knobs that you don't have to think about. You have to actively look for it as you drive which makes it very dangerous to use.

As for Apple Carplay, I have as well, and it feels like the designers don't actually use it for driving. Some decisions are absurd. For example, a lot of the buttons you need to press are on the opposite side of the display (at least for cars with drivers on the left side). It's totally dumb that they are on the opposite side that needs to be hunted for.

In terms of safety, big knobs and buttons are best.