Cruise Control. Over fifty years ago a blind inventor named Mr. Ralph Teeter built the first prototype speed control in Hagerstown, Indiana, USA, The Dana Corporations spent the next thirteen years developing, testing, and creating the market for speed controls. Rostra Technologies purchased the Precision Controls Division in 1991. Rostra have taken a good product and improved on it, so much so, that Rostra Cruise Control is factory-fitted as original equipment on some of the world's leading cars. Cars which never accept second best. A-Z Trading represents Rostra exclusively in Australia. We import and distribute through our network of approximately 450 dealers Australia wide.Rostra Cruise Controls are manufactured in North Carolina, USA. Quality is built-on to the extent that a guarantee can be built-on for the manufacturer's