In 1968 there were 7199 Z-28's built.The number of Z-28 R/S would be a guess.There was a post last week on the number of Z-28 R/S's built in 1969 and I guess there were no actual production numbers when you start mixing options(I guess it would be very hard to document way back before computors). At 7199 Z-28's built your car is rare in itself,say 15% to 20% of them were R/S's and your talking 1100 to 1500 cars. If the car is #'S matching and documented with 31000 miles,sounds like you've got a Rare and valauble Z! Cary
69 Z-28 R/S Daytona Yellow,X33D80, DZ302,m21,DLX interior,ZL2 hood,endura bumper,rosewood wheel and dash, 30290 miles.