Big change , one that I have been bitching about since day 1
I'm proud to say
car grids are now completely random in custom / arcade race .
Tested it with five tracks .
Previously car grids were hand picked by polyphony .
That meant every #1-2 car in GT 3 was a BMW and the third car was always a GTR etc.
The best proof is Rally .
If you picked starting #2 you always got the Audi Quatro as an opponent . If you picked #1 you got a mustang Gr.b
Just done a custom GT3 race at Le Mans and it was the usual grid with the BMWs 1 and 2 so has not changed for me.