I cut this from one of the wonderful emails we all get. Seems bs to me.
How can your speed increase if wheels have no traction?
NEVER DRIVE IN THE RAIN WITH YOUR CRUISE CONTROL ON. She had thought she
was being cautious by setting the cruise control and
maintaining a safe consistent speed in the rain.
But the highway patrolman told her that if the
cruise control is on and your car begins to hydroplane --
when your tires lose contact with the pavement, your
car will accelerate to a higher rate of speed and you
take off like an airplane. She told the patrolman that
was exactly what had occurred.
The highway patrol estimated her car was actually
traveling through the air at 10 to 15 miles per hour
faster than the speed set on the cruise control.