Congratulations! Very cool that you got the GT version...haven't seen many of those on the road.
As for the tax credit, yeah it's very confusing. Having Mexico as the final assembly location doesn't disqualify it since that is still North America. Basically as of Jan 1st, a few additional requirements came into play (household AGI of less than 300k if married filed jointly, and MSRP cap for SUVs under 80k /sedans under 55k). There will be some additional requirements that come into play in March when the treasury issues guidance on battery mineral sourcing and assembly. At that point, it's expected that no current EVs or PHEVs will qualify for anything.
Here's a pretty comprehensive FAQ that the IRS released in December:
https://www.irs.gov/pub/taxpros/fs-2022-42.pdf