DOES THE HDK SUSPENSION K-MEMBER HANDLE BETTER THAN A T-BAR SUSPENSION?

J-c-c said
I believe this simplistic definition applies somewhat to XV press releases:

Propaganda: "The selective use or distortion of facts with the primary purpose to change, alter, or sway another's position or opinion on a matter at hand and not to widen, inform, or move a discussion along"

IMO most reasonable people should be able to agree often on facts. The issue usually goes astray on how they are interpreted.
I read the original article upon release numerous times.
Maybe I should review again to see what I missed.

Well, you can certainly argue that there's more to chassis testing than putting a chassis on a surface plate and testing deflection with corner loads. Because clearly there is.

But, that is a valid (if simple) way to test a chassis. And really there's no way to "game" it, you load a corner and measure the deflection. There are certainly different ways to interpret that information, and again you can argue how important reducing some of that deflection is too. Since you've provided no actual data, I don't see what's wrong with looking at what XV did. And really XV didn't come up with shockingly different information than what people already knew and had already been doing as far as chassis stiffening.

DionR said
You must be assuming they were selling kits. They were selling cars and I would expect that generally they wouldn’t spend money on something they didn’t need.

They had the data, they could have even fudged them or lied and said the lower radiator support wasn’t needed and saved some money on the builds. But they didn’t.

Well, they were selling kits as well. You could buy a lot of the chassis stiffening products and their suspension packages that they made for their cars separately.

J-c-c said
If it wasn't needed, and they didn't include it, what was the "sizzle" left to market beyond undisclosed multi post data?

The front lower radiator support was if I remember correctly a welded alum member. That is very big no no design wise if it is critical and to be heavily reverse loaded at high cyclic rates.
However, if your goal is to make a sale and just get it out the door, it matters little.

No, the lower radiator support was rectangular steel tubing that welded to the frame rails in place of the lower factory support. It's right in the pictures.

They had a K frame that was welded aluminum, but there's no issue with that if done properly accounting for the different strength and stiffness of the aluminum. No more so an issue than a tubular steel welded K, which all the aftermarket K's are.