1988. Sealed beam headlights were installed on all cars of this class starting in 1956. These cars were nicknamed "Thunderbirds" by their operating personnel and railfans because of the cars' high speeds. Although the R10s could operate in mixed consists of later SMEE cars, the R10s, for the most part, ran in solid consists throughout their careers. They were briefly mixed with fifty R16s assigned to the A in the late 1950s, and with the R42s assigned to the A during 1969–1970. The R10s bore several paint schemes during their service lives. The cars were delivered in two-tone grey with orange stripes. In 1964, 9 of these cars were painted red with black roofs and black skirts (1822, 1825, 1850, 3099, 3101, 3137, 3234, 3334, 3342). During the following year, two versions of the original paint scheme were tested, with 3037 in a lighter gray and 3218 in a darker gray. On car 3133, the orange painted-on stripe was replaced by an attached orange plastic strip along the sides of the car. Beginning in 1966, they were repainted into an aqua blue/white scheme, directly replicating that of the WF R33s and R36s. The first car to be so painted, 3331, additionally sported a TA seal on the end. The following year, the fleet was redone in this scheme on this occasion without the extra aqua blue stripe. These cars variously had aqua blue roofs or white roofs; 19 of these cars received gray roofs and gray skirts. Beginning in 1970, they were repainted into the MTA's silver with blue stripe scheme. Toward the end of their lives, 110 Westinghouse units that went under the GOH program were painted with a green body, a silver roof, and a black front hood. The original interior paint scheme was blue and gray, conducted with various experiments of this nature. While 1848 was all blue inside, 3219 was painted with bright orange and blue around 1964. When the cars were painted with silver and blue outside, the interiors received a light gray and pale green paint scheme (on car 1806, which was 2953 by this time, a dark gray was used). At a later date, the original blue and gray scheme resumed being used once again. The rattan seats also received treatment on certain cars, with 3050 in green coloring, whereas 3210 in a bright blue color. Other features to be noted were a