you are getting better, but still some suggestions
use higher resolution images, and make the panel lines thinner and less prominent, not those dominant black lines
the hood curves down extremely at the front, giving you an edge, adding an intermediate angle plane would help
give it something in the rear bumper area, the sloped in bottom both looks odd and wouldn"t be permitted in a current car
the roof is narrowed extremely at the back, this works for coupes and supercars, but conflicts with this being a family sedan, you don"t need to change the angle of the side windows much, but not curving it in after, but instead giving it a wider rear window would be great.
adding a slight spoiler to the trunk to give it another character line above and further forward than the one between the lights would help