[thstone]

There's no easy answer - everything is a trade-off.

You can get some of the weight out by removing the door speakers and the electric motors for the door locks but there is a lot of weight in the window controller/motor, the window mechanism, and the window itself.

Pop in plastic windows might be an option but they will be a huge trade off compared to glass.

I can say with 100% certainty that driving a car to/from the track without windows takes a certain level of commitment. Sure, its easy in the spring or fall, but its hot as hell in summer and cold as hell in winter.

The temp this morning on my 90 min drive from LA to Willow Springs was in the mid-30's. That's 90 mins of 70mph, 33F air, blowing on you constantly. That is a 14F wind chill factor. I wear thick thermals under jeans, a thermal shirt, a long sleeve t-shirt, a hoodie, and a ski jacket. I have 12v heated gloves (that motorcycle riders use) to warm my hands with another pair of outer gloves to keep the heat in. I wear a thick beanie with a face mask and hoodie over the top to keep my head warm.

You have to want to do this.

I'd say to keep the windows until you are ready and willing to live with whatever it takes to get the car lighter. When you're ready to commit, then go all the way and rip out everything.