CREATE TABLE table_28958 ("Rd." TEXT, "Circuit" TEXT, "City / State" TEXT, "Date" TEXT, "Championship" TEXT, "Challenge" TEXT, "Production" TEXT)

How many productions are shown for rd 2?
SELECT COUNT("Production") FROM table_28958 WHERE "Rd." = 'Rd 2'
SELECT COUNT("Production") FROM "table_28958" WHERE "Rd." = 'Rd 2'