Well, providing that you are using the Forenza as a rally car, you can take the panels out, you can use lexan instead of glass, you can get rid of the tire and jack and hook up with AAA, keep washer fluid to a minimal since it takes almost a complete gallon of liquid, lighter rims, lower profile tires, carbon fiber hood... carbon fiber anything... not that I have all of this on my car but thats what I did with my SC2... and to think a Plastic car couldnt get any lighter
