|The 300 series GMs were delivered to Miami Beach Railway Company, sister company to Miami Transit Co. It was an order of 40 coaches numbered 301-340. They were the first air conditioned transit buses in Dade County and the first GM "New Looks" also. The GM New Looks were nicknamed nationwide as the "fishbowls" because of their large windshield gave them fishbowl like appearance. They were powered by the Detroit Diesel V6 6V71 and the Allison two speed automatic transmission. The last of the series, buses 308, 324, 336, and 340 were retired in 1978.