A quick word about setups. 

The fast.xxx.sim setup is for the ai. It makes them run the laptimes I based the track ini on, and optimizes their car control to be fast without being glued to the track. Sometimes the fast setup is the same as the RACE setup, but not always.
The RACE.xxx.sim setup is the final setup I used to run race laps to arrive at the final track ini numbers, to get the laptimes for the ai 100% opponent strength.

GTP
The RACE (sau) setup is competitive with the ai @100%. The RACE (toy) setup can maintain the lead, but if a group of ai hook up in a draft and get away, it's highly unlikely you'll catch them before a pit stop. The jag & the maz seem to be seconds from the ai laptimes @100%; I couldn't get them more competitive.