I think the point was not to switch with DTM to GT2 rules, but to have a ruleset for DTM, that takes some clues from GT2, especially the unibody as comapred to the tubeframes.
As for the VLN: It's more like the DRM than like DTM: Porsche domination in the fastest class and then a bunch of Bimmers. Could use some Ford Capris, though :P
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