Gentlemen:
The bickering and lack of trust exhibited by the few, aside from its sophomoric nature, detracts from the assumed purpose of this forum, which is, one would hope, to discuss the good and the bad of the vehicle in question.
I am the member whose post, or content contained therein, was labeled "BS" by at least one other member. It is difficult to comprehend the degree of tunnel vision and or brand loyalty which led to such a statement which, by the way, matters little to me, but rest assured that I did indeed encounter the porpoising effect that others have decried, did sell the vehicle back to the dealer at considerable expense and did replace it with a 2009 Lexus LS 460 and that, my friend, is no B.S.!
In addition, a lengthy test drive was performed (v6 model/tech) but not with the vehicle purchased for the specific reason that said vehicle or equivalent was not available for test drive from any dealer within a reasonable traveling distance. Furthermore, it was made clear to me by the dealer that the only means of obtaining the 4.6, which was allegedly in short supply, was to order and purchase one. It was further opined by the selling dealer, that the ride (i.e. suspension) of the 4.6 would "feel" the same as the 3.8. I rest my case.