Ready for a wave of start-stop engine technology? Kia’s on the ball. “The drumbeat of idling engines at stoplights is starting to be replaced by dead silence. It's the result of more use of "start-stop" engine technology that shuts off the engine when the car is stopped for more than few seconds, then restarts it, in most systems, when the driver releases the brake. Commonly used in hybrids, it's just now coming to conventional vehicles in the U.S. market -- mostly high-end vehicles. Though it requires some tricky electronic controls, in a conventional car, a start-stop system requires only a beefed-up battery and starter and a few other...