New York City's subway trains are given their name after the contract it was ordered in. The R11 contract originally consisted of an order for 400 new technology subway cars to serve the Second Avenue Subway which was slated to open in the 1950's. The city ordered 10 prototypes as a test train. These prototypes were referred to as the "Million Dollar Train". Each subway car costed over $100,000, the total R11 subway car order was $1,158,000. After the construction of The Second Avenue Subway was halted, the remainder of the subway cars were never built. 9 of the 10 cars were scrapped, although the last one is available to the public at The New York Transit Museum.