When I wrote that "beautiful" comment, I had in mind that:
a) Many Bugattis were pure racers, and those are not elegant, but functional in the way of their time, and;
b) Although the passenger cars are the lovely ones, at the time Bugatti built cars, many of the bodies were custom made by coach builders.
I don't know to what degree Bugatti made his own passenger car bodies, but I do know the ones still rolling are works of art.