How can it be that a Mazda CX-7 Grand Touring with a sticker price close to $30,000 doesn’t have dual-zone climate control? Indeed, our test CX-7 had a single-zone automatic system, operated using simple, large, and well-marked knobs and buttons located under the stereo. Selected and outside temperature were displayed at the base of the windshield, forcing the driver to first look down at the center console to find the right knob or button and then up at the display to see the desired information.