I don't want to jinx myself so I'm knocking on wood first.
I think my car is virtually invisible to laser speed detectors. I've been zapped several times with laser and was exceeding the speed limit at the time.
Once I even got zapped with laser so I slowed down and immediately got zapped by Ka but by then was slowed down enough.
No visits from the po-po.
They say dark cars with pop-up headlights and no front plate (mine swings on a hinge) are hard for laser detectors to read. It appears I have a stealth roadster! :D
Knocking on wood again.