Honestly. You are very close to make me hate this fantastic car. lol
okay, fine. It's just my point of view because I absolutely love this car as it is.
It's a brutal car seriously. Fast, and.. you name it! So imo, this smoothing you did on the side does not really fits the character. (Still is a good way, for being a new artist)
Smoothing on the truck doesn't really fit either.
But then when we look at this rear bumper.. man it stands out completely from the whole smoothing you did doesn't it? Try to match your style along.
Then, chrome wheels? I mean why.. Okay maybe it's still your choice there, maybe it's just me here but still you have some blue-ish color on there that you might want to get rid of.
To finish with my boring comment that is probably getting you mad at me (

), there is the reflection on the windows. A bit too strong don't you think?
Overall, it's 'okay'. I mean what can we expect, you are a new artist so you are trying. Consider my povs. Think about it from time to time when you chop!
Keep it up.