The R30 was a New York City Subway car model built by St. Louis Car Company from 1961 to 1962. The cars were a "follow-up" or supplemental stock for the B Division's R27s and closely resembled them. A total of 320 cars were built, arranged in married pairs. Three versions were manufactured: Westinghouse (WH)-powered cars, General Electric (GE)-powered cars, and R30As.