Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. From 1902 to the modern day, Cadillac, a brand of General Motors, has introduced many models with differing engines to establish itself as the premier luxury car in the United States. 1902-1903 Cadillac runabout and tonneau - 72 in wheelbase single-cylinder engine, 1903-1904 Cadillac Model A - 72 in wheelbase single-cylinder engine,1904 Cadillac Models A and B, Model A - 72 in wheelbase single-cylinder engine, Model B - 76 in wheelbase single-cylinder engine.