Based on the looks, interior, fit and finish there's no denying that m6GC is better, and it has the amazing DCT transmission, however the fact that it's 4 wheel drive and the power is more usable on the streets is kind of what I like about rs7 and the fact that it's easily tuned, can't comment on the handling and driving quality since I haven't driven the Audi. I say test drive both.
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