Well, I bought my first Nissan (family car) because it was being built in the UK where I live.
I liked the car and the dealer a lot - I then bought my wife a Nissan Juke and the experience was even better.
So, I thought - well, lets give the 370z a go. Having previously owned two S2000 honda's (great machines) and enjoyed the dealers over there I found that it was the dealer 1st, then the Z, and then the manufacturer.
Now I have the 370z I can honestly say that the car is one heck of an achievement for the money for Nissan - I moved to Nissan for the cars and dealers, not the name Nissan.