Book excerpt: Blending automotive manufacturing and styling techniques with state-of-the-art diesel-electric technologies, General Motors’ Electro-Motive Division conceived and marketed America’s first commercially successful road diesels: the fabulous E-Units and F-Units. This illustrated companion to Voyageur Press’ Alco Locomotives (2009) and Baldwin Locomotives (2010) is the most comprehensive history of the most recognizable locomotives ever built. Beginning with 1937 debut of the fast and powerful E-Units designed for long-haul passenger service, author Brian Solomon treats readers to a wonderful array of archival imagery while explaining the impact the locomotives made on the locomotive market and the railroad industry.