Good Morning or Afternoon,
Is there a way to find out if your car has the new next-gen chip built into it?
No, go away. /s
Seriously to answer your question. Yes there is a way.
I believe cars manufactured after mid April 2019 have the HW3/FSD chip. However Elon did tweet that there isn’t any advantage right now to having the FSD chip since the software is more refined for HW 2: https://mobile.twitter.com/elonmusk/status/1111762533520531456