Had a late scare with only a few laps to go when 1 backmarker cost me about 3 seconds twice when i caught him at the banking each time. Bit better use of mirrors would have helped there 

Not sure I totally understand this idea... is it:
1) Are you meaning this would be like running a Division 1 & 2 in the same race? So the quickest drivers would be competing against each other for points & us slower/newer chaps would have our own championship to go for? If so, sounds interesting. I'm not sure why, but I much prefer the Enduro scoring system as basicly you get a points reward for your efforts even if you're not in the top 14. I hate finishing 15th in the sprints 

2) Are you meaning that when a race is announced, one of the car choice would be reserved for drivers outside the 'Top 10' positions in the championship? (i.e. in a GTC-76 race, only people outside the top ten could choose the 906 maybe?) Promoting a more varied grid & possibly a closer one too (Which is something I reckon most people would enjoy). 

3) Something else entirely? 

( I hope my ghost didn't cause any problems!!