Complex sentence: Rudolf Caracciola (1901--1959) was a German racing driver who won the European Drivers' Championship an unsurpassed three times, and the European Hillclimbing Championship three times.
Split into simpler sentences: Rudolf Caracciola (1901--1959) was a German racing driver. He won the European Drivers' Championship an unsurpassed three times, and the European Hillclimbing Championship three times.