Buying a new car can be really exciting, but it can also be a little annoying when salespeople assume we know what all their jargon means. Many new Mazdas are equipped with a version of adaptive cruise control called Mazda Radar Cruise Control (MRCC). MRCC uses radar to judge the relative speed and distance between you and the car ahead of you. If you’re getting too close, your Mazda’s MRCC will automatically slow you down to avoid a collision.