multimediaman: I basically render a 1920x1080 resolution and the anti-aliasing issues are gone. also the edges are starting to become more visible. haven't texture the entire car yet, eg: body paint is just a shader, I only textured the lights for now.
I followed this tutorial for the bodylines.
Nissan Nismo GT-R R34 - Game Artist Forums
niray, tom, nublet: IMO, high poly and low poly are fun in different ways and for some, high poly modeling is a lot easier than low poly.
For me, low poly is easier because my computer can't handle a lot of polies on the screen and if you are modeling high poly, you should model the fine details (modeling the air vents for the interior etc) otherwise it kinda defeats the purpose of modeling a high poly model! High poly modeling really tests someone's patience IMHO. I could model a high poly car body just fine but to actually finish an entire car is another question.