I was listening to a youtube video and the guy said not all lenses are able to work with the 7500. I was hoping for a little more detail on this. Im wanting to get a nice lense for taking pictures are races (nascar, dirt, etc).
I would bump up to the d500 but I need auto mode because im have ZERO idea what im doing but I want to learn swim going to start in auto and move from there.
The "P" mode that's available in all cameras is "Programmed Auto" and very close to the full auto mode in entry level cameras. I would go as far as saying that a full auto is superfluous.
D7500 does not offer exposure metering with old manual focus Nikkor lenses back from the 1960's and up to mid 1980's, but is fully compatible with all autofocus lenses that Nikon has ever manufactured. If manual focus lenses is your thing, then I would not recommend any D7xxx or lower camera, but instead something like a DF or a D800 and up, or even a D600 if you want to get a low cost camera. Even then I'd replace the stock focusing screen with a one better suited for manual focusing. There are for example several microprism and split prism screens available for select cameras.
The D7500 offers a flippy screen (a weakness in the body in my books, but some folks like it), a much bigger image buffer and faster burst shooting over D7200. The very important autofocus module is the same and the D7500 viewfinder is a little bit bigger. Some things have remained the same between the models, some things have even worsened.
Compatibility with manual focus lenses is moot in my humble opinion. I have about 30 manual focus Nikkor lenses and use them almost daily, but I have several cameras dedicated for that purpose. Can a D7200 use MF Nikkors? Yes with ease. Can a D7500? Yes of course, if you know what you're doing. Would I recommend either? Nope.
Have you read Nasim Mansurov's comparison? It is a cool-headed and impartial read:
https://photographylife.com/nikon-d7500-vs-d7200