I was certain, nearly certain it was, but when the R35 launched at the TMS there was all of this talk of "VQ bank angle and bore are retained on the VR from the VQ" --and then everyone began saying "seee!! it's VQ-based afterall!!"
And when I then said "No... bank angles for all V6s are the same... bore spacing doesn't mean anything but that they've spaced the bores the same as on the VQ --doesn't mean it's now suddenly a VQ engine."
People are so convinced of the VQ that they don't even believe it when you say it's not a VQ. This is what I have encountered on the American boards.
I even said for about a year prior to release that the R35 would unequivocally NOT have a VQ and I was laughed at.