That's the only reason I'd buy a car with this sort of package. I rented a Mazda6 for a weekend with the radar cruise control and smart brake support. I got on the highway, set the cruise for 85, and let it do all the speeding up/slowing down that was needed. All I had to do was change lanes, provided the blind spot… » 2/27/15 12:32pm Friday 12:32pm