CREATE TABLE table_42451 ("Year" FLOAT, "Team" TEXT, "Chassis" TEXT, "Engine" TEXT, "Rank" TEXT, "Points" FLOAT)

Which engine has a chassis of dallara, is ranked 6th, and has 384 points?
SELECT "Engine" FROM table_42451 WHERE "Chassis" = 'dallara' AND "Rank" = '6th' AND "Points" = '384'
SELECT "Engine" FROM "table_42451" WHERE "Chassis" = 'dallara' AND "Points" = '384' AND "Rank" = '6th'