Most people will just simply never understand how their vehicles are designed to work. Or how they really work.
V8 engines are not V6 engines.
Gas engines are not diesel engines.
VVTi and other games can change engine performance parameters, like move torque and "horsepower" (i.e. energy output) around, change the curves, peaks, etc.
Engines all have design power and torque outputs. Whether they're gas or diesel does not matter, although the points are usually different. In Europe, there are lots of cars with 1.4L turbo diesels getting > 50 mpg, last 150,000 miles, and have a design ideal power output in the 3500 rpm range. Yes, a diesel. Applying things you heard about American V8's in the 70's to an engine designed elsewhere with more modern metallurgy and people who care about how their products are put together is pretty ignorant.
Gearing, both in the transmission and the differentials matters. As does when the transmission shifts. And how the gas pedal input is translated into fuel delivery.
And the laws of physics play a big role in all of this. I think the stupid said about the above stems from the fact that most people either didn't pay attention, didn't understand what they learned in their grade 10 physics unit, or ... I don't know.
And lastly, people buy gigantic V8's and turbo diesels, tow 5000 lbs + around while their automatic is in "D" and think that's how anyone making a V6 that can tow too should make their V6 systems work too. Those people must have grown up in a world without manual transmissions, and probably drove any vehicle above the DOT class of "light duty."
I am too old to let it get to me, but as [MENTION=66316]1engineer[/MENTION] said, the same people who believe the above come to internet forums looking for info, won't really search, or search poorly, and stumble upon threads full of misinformation and broscience presented as fact.
In addition to being able to "like" a post on t4r, we should be able to flag one as "bs" (either the conventional abbreviation or for "bro science"), and "fact-free opinions," which are different but related.