Have an option for seat cooling, where cooled air is pushed through small holes in the seat cushion. Each front seat should be individually selectable.
Would be nice to have several settings, such as auto-turn off after 3 minutes, and auto-on if the interior temperature is above a specific temperature when the vehicle first starts after unlock or access.
Many luxury cars now offer the basic feature, but most are just ventilated rather than actually cooled. For example, Lexus 2013 RX350 has heated/ventilated seats for $650 as an option. The Lexus LS460 has heated/cooled seat bundled in an package of features (so no separate cost available). To work, it does require a perforated seat material, which some users might not like.
Available on the Model X.