One of my favourite car mounts of late has been one with a sticky back onto which your phone can quickly be mounted. And just as quickly be taken off single-handedly, which is probably more important.
Why would I be interested in reviewing a couple of car mounts where you need two hands to dismount your phone? Only when it offers that something extra which most car mounts don't have yet: an easy NFC connection.
Let's look at two implementations of the same idea from Osomount: one is a mount you can put on a windscreen or the dash and the other one can be inserted in one of the ventilation slots.