None that I’m aware of- math is the limiting factor here, which is why most kids opt for chem earlier (our school makes it nearly impossible to accelerate so unless you have transferred from elsewhere during early high school you are usually stuck in the district sequence). But there are some kids every year who do take physics first, mailnly those who are considering it for a major. Here, physics C is done at the same time as regular AP physics, all in one course for those who choose that class.