 The body style reflected a mix that started with the traditional Spanish horses already common on the plains of America before 1700.Then, 18th-century European bloodlines were added, particularly those of the "pied" horses popular in that period and shipped "en masse" to the Americas once the color had become unfashionable in Europe.These horses were similar to a tall, slim Thoroughbred-Andalusian type of horse popular in Bourbon-era Spain.