In the late 1960s Ligier started racing Porsche sports cars .
In the late 1960s Ligier even raced in Formula One , taking part , in 1966 , in five Grands Prix with a privately entered Cooper - Maserati , before injuring his knee in an accident .
In the late 1960s Ligier started racing Porsche sports cars and even raced in Formula One , taking part , in 1966 , in five Grands Prix with a privately entered Cooper - Maserati , before injuring his knee in an accident .