Concept Car 'Brute'

I am really proud of this one since this is the piece I spent most time for. I first made a sketch for the concept. Then I roughly modeled it in Cinema 4D and rendered out the blueprints. After that I started modeling the actual car. All in all I spent about 50-60 hours for it including rendering and setting up (which took most of the time).
The concept itself was actually supposed to become a modern muscle car but somehow it turned out a little too sportive Anyhow I think I managed to make it look really brawny. As this is my first concept car I would really appreciate critique for the shape.

I hope you like it

Update: Fixed some minor errors and the rims have blurry reflections now... I hope you agree that it looks better this way