New “speed limiter” devices for cars are set to force reckless drivers with multiple violations to finally slow down, by linking to their ignitions and capping how fast their car can go with the help of GPS technology, The Post has learned. The new units — which could be forced into the cars of some 3,000 bad drivers at $1,000 a pop under a proposed state law — was giving a test drive Wednesday for reporters. “This technology does work,” said Sen. Andrew Gounardes, a co-sponsor of the so-called Stop Super Speeders Act, told The Post during a demonstration of the tech in South Slope Wednesday. The bill, which would force the devices into chronic speeders’ cars for as long as a year, is the latest attempt to thwart speeding after the expansion of red light and speed camera programs.