tail lamp bulbs question

[Gary Stark <redbakstark@xxxxxxxxx>]

 friend recently experienced sudden acceleration in her '89 190E.
What happened is that she turned on the motor, applied the brake and
then selected reverse to back out of her garage. ...
In talking to the Mercedes rep about the incident, he is reporting to
her that there is a way, within either the taillamp or the bulb, to
determine if the brakes were actually applied at the time of impact.

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