I completely understand your frustration with the lack of weather radar functionality in the Challenger 650, especially considering the significance of weather navigation in real-world flying. However, I must clarify a misconception regarding the situation.
The absence of weather radar is not due to any negligence or unwillingness on our part. Rather, it is a technical limitation tied to the way X-Plane interprets and represents weather within the simulator. While Laminar Research has indeed made commendable improvements to weather depiction in X-Plane 12, they have not yet provided a way for plugins or aircraft to accurately identify the specific cloud patterns, storm cells, or their exact locations within the simulated environment.
This is more than a minor obstacle; it renders what you're asking for technically unfeasible at this time. Even if we were to access real weather data, it would not correlate with Laminar's approximated in-sim depiction, leading to potentially inaccurate and misleading information.
Please know that we share your eagerness for this feature, and our hands are literally tied until Laminar extends the necessary support in their API. We remain committed to enhancing our products and are hopeful for future developments that may allow us to provide the weather radar functionality you desire.
I hope this sheds light on the complexity of the situation, and we sincerely appreciate your understanding.