Ok, I get you're wanting all that, but I just need something to hold the phone while I drive. Plugging in from a cable when necessary (I only do so when the phone is under 80%, so I don't want something that always charges anyway) is fine with me, and I just wrap a usb cable around the base of my mount. Special car modes just aren't required for me anymore since touchless controls ("ok Google now, open play music", "ok Google now, call my wife", "ok Google now, navigate to Starbucks" all work great with little to no touching of the screen required, though for some reason, navigating does require that last touch to have it start.)
The Airdock does use a standard ball mount, by the way. I don't know which size, but it was the same as the Motorola bionic dock, because I had to start using the suction cup mount from my old bionic dock when I ruined the one that came with the Airdock. Because it has magnets, you can also get the droid maxx into car mode if you place it on the Airdock just right, and still have it charge (though it can be tricky, too.)
That reminds me - has anybody found if placing a magnet somewhere on the back of the turbo starts a car dock or desktop dock mode, as it does on the maxx when you place a magnet on the back across from the volume buttons?