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We know the IMSA-Grand-Am Road Racing Association post-merger days growth resurged 4 times more powerful than Champ Car-IRL IndyCar post-merger because IMSA worked by professional and competent leaders such as brought DPi in 2017 and later LMDh-style GTP in 2023 meanwhile Champ Car-IRL IndyCar post-merger still cannot help to return to heydays endlessly.

IndyCar post-merger stucked in endless hard time because of incompetent leadership although Fox chunks shares still can help IndyCar growth but still slow even stall.

IMSA suffered downfall in 1998 because of USRRC formation that angered fans and Andy Evans was the most hated man because he acted like Tony Hulman George to do catastrophic split and still never forgive him. American Le Mans Series VS GA Rolex Sports Car Series war were a dark times of North American Sports Car Endurance Racing because Rolex 24 at Daytona without IMSA like car without engine and was a biggest humiliation.

Do you agree? Thoughts on that?

My dad, brothers and I wanted to go to IMSA at VIR in August. We'd likely be going for only one day. I'm having a hard time figuring out what the different classes/cars are in each race. Could someone tell me what are the cars for the VP Racing, Michelin Pilot Challenge, Weathertech, Michelin GT challenges?

We're interested in multi-class racing and GT3 racing. Any suggestions as to whether Saturday or Sunday would be best for us?

Edit: Thank you everyone for the responses! Sounds like Sunday is the day to go