Suggested

Review suppliers

My suggestion is to re look at the supplier. Make the options more wide spread. For example supplier A. Breaking +40 fuel -20. Some could stay as they are to mix it up and make more options for people to making. Could spread the cars apart more with range of development. And break up trains. Just a idea tho.

I like the idea of reviewing the Suppliers. Maybe more options for the Fuels for sure. I'd like to also see a Sponsors type deal with Suppliers, so you're locked in to a Supplier for a certain amount of races. This is mainly because it would mimic F1  a little more, which we're always told, this isn't a F1 sim.
Nice idea, but don't think it'll get reviewed. Other issues to resolve first :/

I agree with you that it will be hard to get this one reviewed, because I have talked about the suppliers once in a previous thread, but it just went unnoticed lol

Suppliers should be based on performance, as it stands now we all have the same 

IMO, Suppliers should rotate their attributes each season.