While parts of our brains can be trained from youth to adapt to certain new technologies, much of it cannot. The lizard part of our brains certainly cannot. Flashing and bright colors need to be avoided.
Our brains do not have the processing power to drive. To pretend to ourselves that we can actually drive, our brains short-circuit normal processing by 'pre-identifying' objects based on expectations (causing situational blindness). Audio processing takes a bunch of that brainpower away - and you don't realize it. Cell phone audio, being so bad (and for a number of other reasons), takes unusually high amounts of processing. And the lizard part of our brains treats audio as higher priority than visual information(!).
Glancing away at a GPS screen is a context switch / jump cut - more processing power needed. Whether it's on the dash or down to the right, probably doesn't matter. A heads-up navigation mechanism would probably be best since it would be a continual context that the brain could learn the pre-objectifying for (if designed right).
Yeah, I think we could adapt to technology, to a point (younger folks will generally do better), and certainly we could make technology adapt to us. But in the litigious U.S., doing so is going to take a lot of very careful, very long research. No ship and iterate here! A company as small as Tesla should probably not be the ones sticking their necks out.