Looks good and has nice proportions. I was going to comment on the part where the neck meets the body, but it seems you are already aware. If you're converting that to sub-ds you probably could have got away with using a lower polycount because of the way sub-d's work.
Take a glance at my <a href="https://forums.simplymaya.com/showthread.php?s=&threadid=9428"><b>Porsche 959</b></a> WIP