It was mainly the victim of poor market timing. Big cars had been selling like hotcakes but by the time Ford released the Edsel a recession had set in and people switched to smaller, cheaper cars, like the Rambler American and Volkswagen, and then shortly the Falcon, Corvair, Valiant, etc. You'll notice that at first only big V8's were available, smallest, I believe, was 361 cubes, up to 430. Then, in '59 I think, the 292 was the base engine, and in 1960 the 223 cu. in. six was the base engine. So they tried to follow the market, but it was too little too late. And the looks were a love it/hate it deal.