Thank you!!In today's new Oracle07 release "1.76" i added a new "LMP2 Pack" opponent filter as your request to provide you with only LMP2 opponents. This will give you "13" LMP2 AI opponents to race against.
Note: It's best to first select a LMP2 car and then proceed to your Opponent filters and make sure only the "LMP2 Pack" filter is selected which will provide you with only LMP2 opponents. Good luck, have fun.