Just to add more Gasoline to the fire ! I am far from an expert on the ZZZap Z but i do own one with SAP and a pair of Black Pearl cars . Nissan used two print add campaigns announcing the ZZZap one with SAP and another pointing out the SAP package .There was also an arcade game released at the time the ZZZAP cars were released called 280ZZZAP By Midway (BAlly)(I own one)http://www.klov.com/game_detail.php?letter=0&game_id=6777 it was a revised Night Driver game but showed the Yellow 77 280z on the game and print advertisements both without the SAP package but headlined with 280ZZZAP .From this I have to cast my vote that all code 411 1977 Coupe Z cars are ZZZAP cars with or without the SAP package as are all 638 code 1978 cars Black Pearl cars with or without SAP.To answer the original question of a number of ZZZAP Zs manufactured the number i have seen for Black Pearls is 1800 (one per dealer in 1978 ) but i must say i have seen many more Black Pearl cars than ZZZAP cars ??? Someone should start a registry for ZZZAPs like Ross Williams has for the Black Pearl cars . Just my 2 cents !