This comparison of the Ferrari and Toyota has nothing to do with quality. At all. Those who have read Pirsig's other book, Lila, dealing with the metaphysics of quality -
www.moq.com - will recall that it is perfectly feasible for the Toyota to be of a higher quality than the Ferrari. Quality is not a constant at all.
What is important, is for a thing to have quality for you. As Pirsig says, Quality is a noun.