I had an idea for making my car lighter its a 95 civic 4dr,since its slow as hell and on a tight budget.Could i cut out the bottom well of my trunk where the tire is at and get a piece of sheet metal welded in place there or will the air going under the car hit the back underside of my trunk and cause it to lift?Just an idea and wanted to get other ideas from people.Keep in my that I dont want to fly.Also could you replace your windows with plexy glass(just the driver and passenger windows) or would that be shitty