I dropped the textures down to medium and have everything else on high or ultra with Temporal AA. Doing this completely got rid of the stuttering issue while I'm driving. I have a GTX 770 2GB using the stock clocks with an i5 4570. I also used the borderless option which somehow kept my framerate pretty steady between 60 and 45fps.
				
			 
	 
				 
	 
	 
	 
	 
	
 
 
		 
 
		 
	
 
 
		 
 
		 
	 
 
		 
 
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