just some of my old ones
Limo:

Seat:

Stock Lancer:

Tuned:

There are some nice ideas here mate
A few tips for the future
-always use hi resolution, high quality donors for parts
as you can see on your Seat, the sideskirt looks rather grainy

You should also try bases with outdoor backgrounds, they are more interesting, and the final chop is more convincing than the studio chops
Just one last tip - when making black, go to image>adjustments>brightness/contrast
there, increase contrast and reduce brightness, that way you get a more glossy black finish

Rest looks promising - some nice ideas and styles mate - especially the evo
Keep up the good work and post some more stuff up