The proposed R211 cars from NYC Subway. These cars aren't in use yet, or even built yet.

"The R211 is a future new technology (NTT) New York City Subway car for the B Division. The MTA will invest $3.188 billion in this 1,025-car order. These future cars are anticipated to replace the remaining R32s, all R44s on the Staten Island Railway and possibly all remaining R46s."