1968 bolt on design wheel covers
Not rare enough to matter.
Edit: I guess that wasn't a very good reply, I will try for a better one.
I wouldn't call them rare. Uncommon would be a better word.
You had the standard dog-dish which is probably the most common.
Next was the Deluxe full wheel cover ($21.30 option). These are the rarest to see on a car today. The only thing deluxe about them was their name. They are not very attractive so people don't run them. They were, back in 68, more than likely the second most common.
Next would be the Bolt on ($44.90 option). Less common than the Deluxe and Dog dish.
Lastly you had the full wire wheel cover. Probably the least common (although I don't have hard numbers). These were a $64.10 option which was damn expensive in 68.
