When I saw "speed limiter tested," I had something else in mind!
I don't think it was a speed limiter, per say, but once I had to drive a school bus. When I got that thing on the highway, as soon as I exceeded 55 miles per hour a buzzer sounded and a red lamp illuminated on the dash saying, "overspeed." I'm not sure if it was designed as a speed limiter or an RPM limiter, as the engine speed sounded like it was maxed out.
That was an old bus. I had to learn to double-clutch as I was driving it!