I am sure the variation sold to the public are different, but the point being, they were designed in conjunction with someone who is intimately knowledgable on our vehicles.
Quite unlike EIBACH who think the Skys have completely different suspensions than the solstices.
So you think that companies like Koni, KW and BC don't have qualified staff to develop suspensions? Rhys Millen, though a superhero to us because he drove a kappa, isn't the only good driver out there. I don't know how much of an expert suspension developer he is. I mean he could be a great driver, but that doesn't mean I want him to build my car.
Also I don't necessarily trust how much he "developed" them. I mean there are tons of corporate "partnerships" out there which are just for marketing. The only way racers can race is if they are sponsored, and they'll say anything for that sponsorship.
I don't mean to come down on the product, they are probably great. But they may not be any better than anything else out there.
I know no body did more safety testing than GM. But I know many of you don't trust them, so choose what you wish.