AC in the race car !??

Yep I said the two words that don't belong together AC and a race car. I've just not been happy with heat for the last 4 years or so. And I'm finding it to be a real Buzz Kill at the track. I haven't seen any threads on this lately and I really haven't looked for any. I've seen some aftermarket supposedly air conditioners that look kind of cheap and I'm not really sure if they would do what I want them to. I am planning on putting the interior back in the car but I don't plan on hooking up any kind of factory stuff. Any ideas would be great and any experience would be great and a picture would be awesome if anybody has anything out there? Right now in my mind's all I can picture is Larry the Cable Guy with the air conditioning unit in the back window and I'm thinking like a generator in the trunk but I'm done with the heat!