My culture on Seats(especially those Fiat-derived)coming overall consulting many world cars annuals since 1977(the former got as Xmas present,dictionary-sized"TAM-Tutte le Auto del Mondo'77/78",edited by Domus in Italy--same Editing House of motor magazine"Quattroruote"and the old cars magazine"Ruoteclassiche")
Thru the years had collected many sales literature on Spanish motor vehicle(some got by Dealers,other got by Makes or Importers writing a letter):Seat,Pegaso,Derbi,Moto Vespa,Serveta-Lambretta,Citroen-Hispania,Mevosa,etc...