You might already have this in mind, but I find too many F1-only management games these days.
There should be a Rally league, a GT league, a 24-Hour league, etcetera.
Though I think we should be able to make our own leagues if we are rich enough. (coughPanozcough)
When we make our own leagues, we should be able to limit it by body type, engine size/type, etc.
Already been dreaming of this as an expansion if we’re sucessful
Excellent. 
That is so AWESOME!
Would love to have different spec’s, limitations etc. etc.