Well, the panda was never meant to be beautiful, or fast. Just a very cheap, robust and reliable car. Those are qualities aswell. Pretty sure its one of the best selling cars he designed, if not the best selling. To the FIAT's sold, you have to add the spanish variant SEAT Panda (which were at the time just rebadged FIAT's made in spain) The russian T-34 was the best tank in WWII. Why? Because it was cheap to build, reliable, robust, and did the job. They beat the much more complex, powerful and heavy german tanks (particularly, the Tiger), because those were far more expensive and unreliable, and expensive to maintain and run. Due to this the russians managed to produce the T-34 in very large numbers, and the germans couldn't do the same.