Feather Duster Dart Lite Thread

yes I just wrote a thread asking about this car . I just found 1 in northern wisc.and wondered if it was worth looking into or if some 1 else would like some info . I"ve have seen a feather Duster , but I have never seen a Duster lite or the spirit of 76.
its True they do exist . what is it worth tho??? pm me let me know aluiminum frame and frame to make the cars lighter during the gas crunch in the 70"s Or do you throw them in the pile with the vega"s, Pinto"s ford fairmonts ,and the fish bowls??