What kind of weight reduction is possible without drastically altering the look/character of the car? For example, I think that gutting interior parts, cutting and removing inner fenders, acid dipping (does anyone do that anymore?), etc. take the modifications to a different place where you no longer have a factory-like driving experience. On the other hand, modifications like aluminum wheels, fiberglass bumpers/hood/trunk can leave the appearance and function of the car more or less in tact. How light have you gotten your car without turning it into Franenstein's monster? Obviously, this is open to some opinion. Any thoughts are welcome.