Have been thinking about some aspects.
I don’t know if stuff is already mentioned but here’s what i thought about.
I have seen or read that the engines you create in-game have a certain quality rating to them (in regards to wear) or that you thought about it.
But this could also be used as to how fast certain part wear when the vehicle is sold which relates to part sales for repairing. Offcourse this can’t be to high (loss in sales due to poor quality car) .
Aftermarket tuning parts
*I know about sub companies but how about a sub company especially for aftermarket parts (like Nismo and Mugen)
*A different tab in the engine builder for prototyping these parts.
In this tab you create a single part (like a better flowing header) on existing engines, could use the green/red labeling to see if it actually does increase the specs.
*Maybe even using homologation for motorsports derived vehicles like the subaru impreza (must sell x amount of cars before you can participate with a vehicle)
These cars could then be sold under that sub company with some already prototyped tuning parts atached to existing cars.
-Buying engines (or contracts) from other designers
Doing such a thing would obviously hurt the above mentioned after parts sales but it is easier and better for initial costs.
i read about crate engines but imo it would be better to have someone creating it instead out of thin air (don’t know if that was the idea with crate engines tho).
Participating in car shows with prototypes and vehicles that are being released.
Also you would be able to see what the competition is creating and releasing.
Maybe a different show for the tuning parts and cars (like Sema)