Ah.... I thought it was something like that, but it's so tiny.
Thanks for the speedy reply. I was making all sortsa crap up when people I work with asked me....
My best was "It's how the speed is determined. This car is so high tech it takes the road speed from the wind passing over it, then it adjusts the shocks for best stability."
After they say, "WOW !!", I admit I had no idea what it was.