As early as the 1900s, pioneer carmakers from America and Germany were already racing their early models. For example, the 1900 Tatra Rennzweier – propelled by a customized 9-hp Benz engine – was designed specifically for racing. With a top speed of 50 mph, the Tatra Rennzweier was already a fast vehicle at that time, considering that many of its competitors were still pulled along by horses. Since then, the competition to build the fastest, quickest, and most agile cars began, and the earliest sports cars were born. Many automotive historians consider the 1914 Vauxhall 25hp "Prince Henry" Sports Torpedo as the world's first true sports car.