BUDAPEST - Her statue stands, in grand isolation, at the entrance to the old grandstand of the racetrack in Budapest, an echo of the time when Hungarian horses could hold their own with the best of England, France, and Ireland. Her name, Kincsem, means My Treasure, or My Jewel, or My Dear, depending on your mood, and she is all of these to racing in Hungary, a sport that bears the same 20th-century scars as the proud Magyar nation itself.