Best way to keep up with the latest racing technology

I can never seem to find enough information on current innovations in Motorsports. HPA has been an excellent source for me but I’m always looking for more. Can anyone recommend any other sources such as subscriptions, YouTube channels, forums, podcasts, etc.?

Thanks in advance for any input

I'd recommend you consider a subscription to Race Engine Technology and/or Racecar Engineering. Great resources at a reasonably technical level and a good way to stay up with new tech.

Thank you