40's and 50's car companies that never made market?

There are several, however it depends on what your looking at as far as production figures go. Here are some that come immediately to mind though: Kaiser Kaiser-Fraser-Nash Darrin (A division of Kaiser-Fraser) Studebaker (later Avante Corp.) Packard (very sucessful pre-wwII) Hudson Desoto (a div. of Chrysler) Nash Rambler (purchased by AMC in the 60's) Lasalle (a division of Cadillac) Edsel (a div. of Ford) Tucker (only 48 models of these made in 1948) Diamond Rio (truck mfg) Diamond T (truck mfg) These are just a few. Hope this helps.