Hello, I'm building a sports car but I have some problems with surface conjunctions.
Fenders and bumpers are a very hard challenge for me...
The car is a very "draft" version, there are many and many details to work on... and I'm not an expert, at the moment I'm working only using the "network" command.
Note: the quick renders have been made with Rhino 5 tail for mac.

Please someone could help me?
Many thanks in advance, Franz

PS: I have added the .3dm file.