With over 100 BMWs and 300 motorcycles in his private collection, Christian Silberhorn celebrates BMW history. He shares stories of his wedding car, a BMW 2002 TI Diana, his AC Schnitzer S7 BMW E32, his BMW TI 1800 pickup, and other rare gems. Christian Silberhorn owns over 100 BMWs and 300 motorcycles. He shares stories of his BMW 2002 TI Diana, AC Schnitzer S7 BMW E32, BMW TI 1800 pickup, and other rare gems.