Original: The Class 59 Co-Co diesel locomotives were built and introduced between 1985 and 1995 by Electro-Motive Division ( EMD ) of General Motors ( now independent company Electro-Motive Diesel ) for private British companies , initially Foster Yeoman .
Simplified: The Class 59 Co-Co diesel locomotives were built and introduced between 1985 and 1995 by General Motors Electro-Motive Diesel ( EMD ) for private British companies , initially Foster Yeoman .