"Jack
Something I didn't mention but was reminded by working on it today... all suppliers will have the same basic level, but each offers a bonus to the design. It's about choosing the one that brings the levels up that you want to target.
This will stop everyone flocking to an obvious choice as when there is a "best" and "worst" supplier. As you may be starting to notice, this update has required virtually every aspect of the game to be altered or rebuilt to match this new system, from assembly to suppliers to design to the simulation of the cars.
I noticed them all being rather the same, also noticed that the Chief Designers will now have a strength to one design attribute (ie Downforce) and a weakness to another attribute (ie Acceleration), different for each Chief Designer. I am assuming the suppliers are going to have the same effect.
Sponsors however have obvious attributes either at the moment on beta, what's going to be new with them?