15. Chevrolet Corvair

The Chevrolet Corvair, produced from 1960 to 1969, was notable for its rear-engine, air-cooled design, setting it apart from contemporary American vehicles. (en.wikipedia.org)
Despite its innovative engineering, the Corvair became embroiled in controversy due to safety concerns. In 1965, consumer advocate Ralph Nader’s book, “Unsafe at Any Speed,” criticized the Corvair’s handling characteristics, alleging a tendency to oversteer and roll over during sharp turns. (en.wikipedia.org)
In response, the National Highway Traffic Safety Administration (NHTSA) conducted a comprehensive study in 1971, comparing the 1963 Corvair with four contemporary vehicles. The 1972 report concluded that the Corvair’s handling and stability were comparable to, or better than, those of its competitors, finding no abnormal potential for loss of control or rollover. (en.wikipedia.org)
Despite these findings, the Corvair’s reputation suffered, leading to a decline in sales and its eventual discontinuation in 1969. Nevertheless, it has since achieved cult classic status among automotive enthusiasts, celebrated for its unique design and engineering innovations. (en.wikipedia.org)