hi bullet 1968 soli for late reply
my spec is core i5 , 4gb ram, 1gb ati graphic card
my polygon only have 18k, render setting is in default mode, i using preview smooth mode which i just press "5" i delete all type of history ald i din hide any part of my model, i have 4 layer which is img plane, car body and car mirror and car tire.i using low res texture to put on my car as a result in rendering it just like freezing the time couldnt render at all need to restart maya.

thanks for you guide i would like to try where is the viewport?