2023 update!!! 20-car grids, more difficult AI, all cars all tracks, DLC cars included, car performance updated, and much, much more! Full description in the README.txt
I only drive the Dodge Viper so I can't speak for anything other than "pro muscle" racing but this is a solid improvement over the base AI on most tracks.
The only thing I deeply suggest be altered is the inclusion of the Mustang Boss 302, Plymouth AAR Cuda, and Pontiac Firebird in "pro muscle" race day events, they should be removed from the "pro muscle" race day roster.
Alternatively, can you make a version that throws the viper in with the "pro tuned" raceday events so I can actually have fun racing instead of spending half the play session restarting and starting race day events?
Best mod around here...