The latest in a long line of development, Evolution Locomotives are set to change rail use throughout out the world. Their development process yielded 25 patents, 13 patents pending, and 18 invention disclosures. At the heart of the Evolutions success is the GEVO 12-cylinder engine, which produces the same horsepower as the old 16 cylinder FDL while using less fuel and reducing emissions, has a 4,4000 horsepower and carries a 5,000 gallon fuel capacity. Today's most up-to-date rail fans will want to read about the development, testing, production of a locomotive that, in it's first year of use, has been ordered by every Class 1 railroad in North America for all three different models. Photographs and illustrations document the features and components of the Evolutions operating across the country, and interviews with GE and railroad personnel fill in the details of current operations and plans for what is certain to be the future of rail worldwide.