Guess it's difference of opinion then, because I always considered rice cars to be front wheel driven, imported, 4 cylinder fart cannons.
And fiberglass is a great option for alot of street/strip cars, probebly the easiest way to cut down on your cars weight is to go with a fiberglass hood/trunk lid and possibly front bumper/valence peices. I have nothing against fiberglass. Not everyone wants a 4,000 lb car rumbling down the street.
Otherwise you could harass everyone who uses a non-original non-factory aluminum intake manifold, or everyone with aftermarket aluminum heads, or aluminum radiators. I mean were do you draw the line? I don't know why so many mustang fans hate on each other, save that unadulterated hate for things like generic motors, or mopars, or hondas ect...