Complex sentence: The last Steinways placed in service were 30 cars converted from former High-V cars and Low-V trailers built as part of the 1915 and 1916 orders from Pullman.
Split into simpler sentences: The last Steinways placed in service were 30 cars converted from former High-V cars and Low-V trailers. These cars were built as part of the 1915 and 1916 orders from Pullman.