CREATE TABLE table_55779 ("Entrant" TEXT, "Constructor" TEXT, "Chassis" TEXT, "Engine" TEXT, "Tyres" TEXT, "Driver" TEXT, "Rounds" TEXT)

What was the featured in Engine through rounds 10-13?
SELECT "Engine" FROM table_55779 WHERE "Rounds" = '10-13'
SELECT "Engine" FROM "table_55779" WHERE "Rounds" = '10-13'