bro i'm using khyber, and i'm talking about front seats, in the scorching heat of multan and lahore, it takes only 2 minutes to get comfortable temperature in front seats if ur a/c is serviced adequately, and its chilling in 10 min. cultus should be better due to better insulation, materials used. the settings used are air circulation on(fresh air off) a/c on full(not on half pressed, its economy mode) fan speed at 4 for blowing air out and 2,3 once a/c is turned on and vents used are the ones towards face and feet.