"Hopefully the low sales figures in this country will keep the 370z prices up."
Unfortunately that logic doesn't quite work. Low sales means very little demand. Very little demand wont equate to prices going up, it will mean they have to go even lower to attract demand. Regardless of whether we want them to or not, the price of the 370z's will fall to such a level that people will accept the higher cost of running the car given the lower purchase price.