Complex sentence: A letter from its founder Ralph Nader to GM Chairman Richard Gerstenberg contained a list of safety allegations, and said the car was a "sloppily crafted, unreliable and unsafe automobile" that "hardly set a good example in small car production for American industry".
Split into simpler sentences: A letter from its founder Ralph Nader to GM Chairman Richard Gerstenberg contained a list of safety allegations. It also said that the car was a "sloppily crafted, unreliable and unsafe automobile" and that it "hardly set a good example in small car production for American industry".