This time, Bugatti turned to British racer William Grover-Williams, a newly minted Grand Prix racer who learned to drive on the streets of Monaco and who won the previous year’s French Grand Prix. Curiously, of the eight Bugattis entered in that race, Bugatti itself only entered one – 4914 – and painted it British Racing Green rather than Bleu de France. Whatever the color, Williams spent the latter half of the race flinging the 2.3-liter Bugatti around the course and fending off Rudi Caracciola in a more powerful 7.1-liter Mercedes SSK, pulling out a win with a minute and 17 seconds to spare.
It won other races too. Built in February 1928 as a works car, Bugatti entered the supercharged racer in the Marne Grand Prix at Reims in July of that year with Louis Chiron at the wheel to take the overall win. Spotty records indicate at least another couple of race entries that year before Bugatti sold off all of its works cars save for 4914, leaving it the only car in the Bugatti stable to enter when organizers announced the Monaco Grand Prix for April 1929.