CREATE TABLE table_65890 ("Year" FLOAT, "Class" TEXT, "Team" TEXT, "Machine" TEXT, "Points" FLOAT, "Wins" FLOAT)

In 1992, what class has higher wins than 0?
SELECT "Class" FROM table_65890 WHERE "Wins" > '0' AND "Year" = '1992'
SELECT "Class" FROM "table_65890" WHERE "Wins" > '0' AND "Year" = '1992'