AIR-CONDITIONING and a pollen filter are standard on both Expression and Privilege RX4 models, the latter using a single-zone automatic climate-control system with push-button controls on the dash fascia instead of the more familiar trio of rotary dials for temperature, fan speed and air distribution. Four vents are provided across the dash and an outside temperature reading is contained within the multi-function display. The rotary dial for blower is an unorthodox one, with the each side providing four fan speeds for either recirculation (left) or fresh air (right) modes.