The calmness is a major selling point for me, personally. Beyond just the safety aspect, I can't count how many times I've gotten nauseous from Uber and taxi drivers swerving and accelerating/stopping abruptly, often for no actual speed gain.
Cars of all kinds, really. But It seems to be more common in either crappy old gas cars or Teslas. I know Teslas have weird brake settings, but every ride I've experienced this has definitely been from aggressive and reckless driving.
