Harrington Lake Diefenbaker suggested that he needed a quiet place to go fishing, not too far from Ottawa. Later that year, Harrington Lake was chosen as the site for an official country residence and the buildings were formally designated as a secure residence for Canada’s prime ministers. During the first prime ministership of Pierre Trudeau, his then-wife, Margaret, added a vegetable garden; according to Kim Campbell's autobiography "Time and Chance", the garden still provided the house with fresh produce at the time of that writing. Campbell was the only Prime Minister to have spent her entire term in office residing at Harrington
Prime Ministerial Limousine G20 summit in Brisbane, and were later commissioned as the official prime ministerial fleet. The limousine, manufactured in Germany, has undergone extensive mechanical and protection-based modifications including armour and bulletproofing. The prime ministerial state car and a supporting armoured BMW X5 is administered by COMCAR, a division of the Australian Government's Department of Finance, and driven by trained officers of the Australian Federal Police. The vehicle has the same visual appearance as a regular BMW 7 Series, however, it has been subject to extensive modifications. The limousine has been fitted with bullet-proofed doors, windows as well as armour on the