okay, so i recently bought the transportation addon from here https://blendermarket.com/products/transportation and i realised it was intricately built.. to the point that the seats, entertainment system etc and even the engine was modelled:
Here is an image of how dense the mesh is:
The problem is, there is no ready made "door" or "hood" and the whole frame is one solid mesh.
My question is: what is the best workflow to "deconstruct" a dense model like shown so that i can make the doors and hood able to swing open and shut to see the intricacies inside? Or what is the least tedious method to split the door/hood from the rest of the metal frame?


Lto selected linked verts. If it only selects the door then it's a loose part and you can separate or animate it. I would be surprised one modeled the interior and engine and you cannot see it. – Blunder Jul 21 '21 at 11:22