CREATE TABLE table_80335 ("Year" FLOAT, "Class" TEXT, "Tyres" TEXT, "Team" TEXT, "Co-Drivers" TEXT, "Pos." TEXT, "Class Pos." TEXT)

What is the earliest year that had a co-driver of Roger Enever?
SELECT MIN("Year") FROM table_80335 WHERE "Co-Drivers" = 'roger enever'
SELECT MIN("Year") FROM "table_80335" WHERE "Co-Drivers" = 'roger enever'