Interesting as over here in Kiwiland/NZ they did market the car, was a big presence in all of the major car mags.  Even now and consistently, they still market the car, a number of campaigns running currently with all of their models including the Z.  Our club over here was invited to a launch even all the way back in 2009, so on mass we all arrived in our Zeds parked up all around the dealership, even though it was a foul day! 
  
  
  
 
Obviously given you've got a 70.   It is a biggish car, it doesn't have any storage space, and maybe it's a little unrefined, but heck it's a sports car!  
People are all getting a bit soft these days, the rawness and size of a Zed is part of the joy of throwing the thing around the roads, twisties and it just keeps asking for more!!!   The it's a Nissan comments really annoy me, not a personal jibe at all.   That's actually a good thing, because you're not tossing around in a "labeled" car that you've paid a fortune for the badge, and often a very unreliable car.   And yes, I do have "labels" too.