Consumer protection activist Ralph Nader addressed the handling issues of the first-generation (1960–1963) Corvair in his 1965 book, "Unsafe at Any Speed". GM had over 100 lawsuits pending in connection with crashes involving the Corvair, which subsequently became the initial material for Nader's investigations. The book highlighted crashes related to the Corvair's suspension and identified the Chevrolet suspension engineer who had fought management's decision to omit—for cost reasons—the front anti-sway bar installed on later models. Nader said during subsequent Congressional hearings, the Corvair is "the leading candidate for the un-safest-car title". Subsequently, Corvair sales fell from 220,000 in 1965 to 109,880 in 1966. By 1968, production fell to 14,800. Public response to the book played a role in the National Traffic and Motor Vehicle Safety Act in 1966.