I'm currently in the process of rebuilding my fourth Stanza, the first photo. It's a SSS 1800 imported from South Africa. The yellow was my first car, the one with the white roof was my third.
The A10 to this day is Nissan's best performing car in the WRC, it was Japan's most successful until '92 when the Celica GT- Four took its crown. These cars are still competing in rallies across Africa, Europe and Australia.
I'm pretty bias, if you can't tell, but I think these cars are great, awesome fun to drive, and am saddened that they aren't as popular as some of the other Datsuns. (Not that I can really blame the other models as they're all great cars in their own rights.) I just wish there was more love (and omg more parts availability) for the Stanzas.