CREATE TABLE table_70476 ("Year" FLOAT, "Chassis" TEXT, "Engine" TEXT, "Tyres" TEXT, "Points" FLOAT)

What is the lowest year for an engine of ford zetec-r v8, and points greater than 0?
SELECT MIN("Year") FROM table_70476 WHERE "Engine" = 'ford zetec-r v8' AND "Points" > '0'
SELECT MIN("Year") FROM "table_70476" WHERE "Engine" = 'ford zetec-r v8' AND "Points" > '0'