The new Tata Sierra has a strong air conditioner that cools its large cabin rather quickly. This is despite its large glass area, created by its huge panoramic sunroof. This is true of the second row, too, where the upward-tilted central AC vents do well to direct air to passengers.
Rear seat passengers have class-best space and comfort, too. Thanks to the immense leg room, headroom, and width. The Tata Sierra has a large boot as well, which will easily take a full-size golf bag.