Brezhnev's main passion was driving foreign cars given to him by leaders of state from across the world. He usually drove these between his dacha and the Kremlin with, according to historian Robert Service, flagrant disregard for public safety.[141] When visiting the United States for a summit with Nixon in 1973, he expressed a wish to drive around Washington in a Lincoln Continental that Nixon had just given him; upon being told that the Secret Service would not allow him to do this, he said "I will take the flag off the car, put on dark glasses, so they can't see my eyebrows and drive like any American would" to which Henry Kissinger replied "I have driven with you and I don't think you drive like an American!"[142]