16. Honda Civic CVCC
The Honda Civic CVCC turned heads in the 1970s with its revolutionary engine technology. At a time when automakers struggled to meet new emissions standards, the Civic’s CVCC engine passed regulations without needing a catalytic converter—an achievement that stunned both regulators and rivals. It gave Honda a major edge over other compact cars and cemented the Civic’s reputation for innovation and efficiency. Read more about the Civic CVCC at Honda Global.