Eldorado Close was named in 1984. A General Motors (US) car is the Eldorado model Cadillac. This is a companion street name with connecting Cadillac Close. In Cooranbong, Guy Menzies was noted for many years for his restoration of luxury vintage cars including Cadillacs (Source: "Cooranbong: First Town in Lake Macquarie" By Michael Chamberlain).
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