A rule of thumb in regards to 3D apps in general is that a shader/material setup for one application will never look the same in another application. (And this is pretty true for all 3D apps, with the possible exception of those that have a common plugin-style render engine.) I believe it applies in this case.

So make note that the materials for models/figures imported into Carrara will always look funky in Carrara, with the exception of models where shaders/materials have specifically been setup and made for use in Carrara. Until you get a good base collection of shaders together and saved to your library, re-doing shaders is a necessary evil. Also with rendering, adjustments are part of the process (if not one thing, it's another) - I'd suggest to get used to it.

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Barbequed Pixels?

Your friendly neighborhood Wings3D nut.
Also feel free to browse my freebies at ShareCG.
There might be something worth downloading.