[strbean]

Does the directive specify that haptic warning must mean a steering wheel jerk? Seems like carmakers have 2 alternatives:

1) use sound + visuals

2) use any other form of haptic feedback. Vibrate the steering wheel. Vibrate the driver's seat. Anything but jerking the steering wheel.

[mort96]

Realistically, car makers are going to find the cheapest way to comply. Adding motors for vibrating the driver's seat costs money. Ditto with adding vibration motors to the steering wheel. Using the motors you already have in the steering mechanism is just software.

So there's a clear incentive to involve the motors which control steering, which is inherently going to feel terrifying.