Hello. I want to thank you a lot for the Gran Turismo 2 Plus mod and I want to give you some ideas too.
In the future, if it's possible, it could be great have some cars of first Gran Turismo like S14 Silvia LM edition, the red/black Honda NSX-R GT-1 Turbo, Acura NSX-R LM GT2 (the Acura version of this car), Toyota Chaser LM Edition or the purple/yellow Dodge Concept Car LM Edition.
I don't know if you have add a way to get the hidden Shelby Mustang GT500 KR of the NTSC version, but it could be good have it as prize car.
Another thing that could be good is adding prize cars to all the races which don't have (manufacturer races, rally races, and even maybe Event Synthesizer), because it makes the game more interesting.
Other thing that you could do is allow Sileighty and Nismo 270R to enter in the manufacturing Silvia/200SX event. And Clio 16V (despite it's slower than V6) to enter in the Clio Cup.
Besides, in the Arcade disk there are some "rally cars" like Toyota Celica (ST185, ST165 and 205), Mitsubishi Lancer Evo III and IV, VW Golf, Daihatsu Storia X4, Lancia Stratos, Peugeot 306, Nissan Pulsar GTI-R, Citroen Saxo, Mazda 323, Lancia Delta HF and Renault Megane, which don't exist directly with that name in the GT mode CD. If there is space, a good idea could be add this cars as prize cars in rally events of GT mode. I know that this cars could be created with modifications on base cars, but since these cars exists in the arcade CD maybe is easier to put them into the GT and in this way expand the game mode.
I know that exists limits due to CD ISO size of PSX, but maybe it's possible to create a variant of the mod in a non common size ISO (like CD-R 800MB) only to work on PC emulator which includes the full features and cars.
Another proposal is to expand the garage spaces to have more than 100 cars, even if it means it occuppy more gamesave memory card blocks.
I'm not sure if this things are possible, but at least they are some ideas that I was thinking and I want to give to you.
Another time I say thank you for all your work. Sorry if my English is not good enough.
Bye.