I have a pre-facelift MB A-class, and I think it's the best car I've driven for controls. You don't have to touch the screen ever if you don't want to: there's a trackpad on the centre console that just works even (most of the time) with Android Auto (and the back/home/map/media/phone buttons will still save you even if Android Auto won't always let you move the cursor to the back arrow in YouTube Music). The steering wheel has two touch-sensitive buttons, one for each screen (duplicating the trackpad, which itself duplicates the media touchscreen). I can't even easily reach either screen when driving, so I don't.

Driving controls are all available on the stalks and wheel, volume is adjustable from the wheel or the centre console, all physical buttons, levers, or scroll inputs, unless you need to change a setting using the trackpad. The only thing that's missing is wheel control for skipping tracks :P.