Comfort and group privacy are features of this striking car of the General Motors train onow on a nationwide tour of principal American cities . The three lower section are designed for occupancy by groups of friends or families . Above , protected by special glare and heat resisting safety glass , passengers can enjoy a high-up view of the passing countryside . The train of tomorrow , consisiting of day coach , dining car , observation lounge and sleeping car , is air conditioned by frigidaire andis powered by a 2000 hp electromotive desel locomotive 13th August 1947