I have two words for you, buddy.
HOLY $#*&
Thats amazing. Awesome.
But you said you wanted citicizm, so here it goes.
I have no room to talk, because thats like my favorite car and you did a great job modeling it, but the crits come.

Rims
Where the spokes blend into the actual rim, the blending area needs to enlarge
Render:
Too shiny, and try to get the deep blue look thats so popular to the BMW cars.

Rating for the Model out of 10:
**********************************************

Cheers,
,Matt