[Redpntrman]

Does anyone know how many cars had tis option? And does anyone know who makes replacement cover for a 1968?

 

[sea dog]

I don't think Pontiac kept those type of records back in 68.

 

[Injuneer]

Very rare. This source indicates there were only 25 1968's with the saddle leather interior, partly because it was not available until very late in the model year:

http://www.highdefforum.com/1340238-post4603.html