Summer 1988 issue.
"When Chrysler began to build hemi powered cars in 1964 for Grand National Racing a "Track Package" was developed to give a racer a complete car. On March 2,1964 a price bulletin was issued covering the new super commando hemi head engine designed for drag racing competition.. in addition the bulletin stated the single 4 barrel track option version for this engine was available by ordering the necessary conversion package from Chrysler p/n2532496. this was only available on 4speed steel body Belvedere hardtop.
Chrysler did not start producing "track cars" until May-June of 1964."

Looks like Nascar for the Belvedere.