CREATE TABLE table_70228 ("Year" FLOAT, "Team" TEXT, "Co-Drivers" TEXT, "Class" TEXT, "Pos." TEXT, "Class Pos." TEXT)

Which class has a Team of kouros racing team?
SELECT "Class" FROM table_70228 WHERE "Team" = 'kouros racing team'
SELECT "Class" FROM "table_70228" WHERE "Team" = 'kouros racing team'