Ferrari backed it up by winning Grand Prix races year after year. I don't know much about the ones since Enzo died, but the older ones were frequently race cars that were softened up a bit so they could be driven on the street.

It also showed in that Enzo didn't give much of a crap about interior quality or amenities. He had to be forced into adding A/C. All he cared about was the performance of the cars. He also was (in)famous for refusing to sell Ferraris to people he thought were not appropriate. Ferrari will never sell one to Justin Bieber again :-)