CREATE TABLE table_52154 ("Entrant" TEXT, "Constructor" TEXT, "Chassis" TEXT, "Engine" TEXT, "Tyre" TEXT, "Driver" TEXT, "Rounds" TEXT)

What was the Zakspeed 1500/4 1.5 l4 t chassis?
SELECT "Chassis" FROM table_52154 WHERE "Engine" = 'zakspeed 1500/4 1.5 l4 t'
SELECT "Chassis" FROM "table_52154" WHERE "Engine" = 'zakspeed 1500/4 1.5 l4 t'