alt Hacker NewsRevit is parametric, but something like Rhino (going off reputation, never used it myself) gives you more free-form modeling control.
It’s like starting with a pencil sketch instead of going straight to SolidWorks, once you start building that more nailed down drawing with its explicit flow of sketches and operations in relationship to each other, it becomes much harder to make large structural changes.
https://help.autodesk.com/view/RVT/2023/ENU/?guid=GUID-71F2C...
Rhino + Grasshopper is the gold standard for all the curvy geometry in anything resembling Zaha Hadid’s work. It is also parametric. There’s even a plug-in to use it inside Revit. Solidworks is great for designing the chassis, but the body was probably sketched in Rhino or Maya.