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Had a few hire cars and a van this month, all with touch screens where most functions you HAVE to use the touch screen. Absolute hell unless you are driving on glass smooth roads, i.e. whilst trying to get it from FM radio to the already paired android phone, skipped a pothole and mashed some other part of the screen = somehow turned on all the interior lights, at night. Had to pull over to figure it out and turn them off (pressing button on roof they'd turn off, then immediately turn back on again).
Unsurprising but worth re-iterating as everything seems to be moving toward touchscreens these days.
http://www.vibilagare.se/nyheter/physical-buttons-outperform-touchscreens-new-cars-test-finds