Finishing with mesh cutting i added volume for surface and bevel hard edges:
Main surface is ready. The next step is adding different parts such as bumpers, headlights, windows, etc.
Underneath of the car :
For the tires i modeled a one piece and copy them with Array modifier and bended it:
Also added a simpe shape interior to make sure it has and seen through the windows:
Added an additional detail on hood:
