In January 1957, Collins married American actress Louise King, daughter of the executive assistant to UN Secretary General Dag Hammarskjöld, and the couple took up residence on a yacht in Monaco harbour. In the same year, Collins was joined at Ferrari by Hawthorn. The two became very close friends, even arranging to split their winnings between each other, and together engaged in a fierce rivalry with fellow Ferrari driver Luigi Musso. However, despite a third-place finish at the German Grand Prix, Ferrari were disadvantaged for much of the season as the 801 model (an evolution of the 1954 Lancia D50) was overweight and underpowered. However, Collins did score some wins that season, taking victory in the non-championship Syracuse&lt;ref name="http://www.formula2.net/F157_5.htm"&gt;&lt;/ref&gt; and Naples Grands Prix.