Hahne, who was born on 28th March 1935 in Moers on Rhine, quickly discovers his passion for motor racing and in 1963 celebrates his first major success behind the wheel of a BMW 700, winning the European Touring Car Cup.
Hahne, que naceu o 28 de marzo de 1935 en Moers on Rhine, descobre rapidamente a súa paixón polas carreiras de coches en 1963 celebra o seu primeiro gran éxito ao volante dun BMW 700, gañando a European Touring Car Cup.