Assuming the vette is a real antique. Maybe they just have a vette file in the ol' replicator...
Personally, I think the "symbolisim" of the kid driving it over a cliff is overstated. More likely, it's just to establish that Jim Kirk was a problem kid, and needed to find a direction for his life. To me, the "antiques" angle seems much more likely.
Number Two: Conform, Number Six! Conform!
Number Six: I will not be stamped, filed, indexed, briefed, debriefed, or numbered! I am a person.