Ron Toomer worked for Arrow and designed the layout and engineered the forces, and his company built the rides.
The B&M/Intamin/Stengle issue is kind of complicated to explain.
B&M come up with products (the coasters). They (Bolliger & Mabilliard, the guys) came up with the track design, IIRC, whilst working with Intamin. They continued to use it after they left (while Intamin used the type they're known for, which was modified from the designs of Schwarzkopf, which they purchases the rights to).
B&M designed most of the systems of the rides, the OS, the braking, the rolling stock, etc. And they worked with other companies that designed parts of the ride.
Stengle, which if you look hasn't been working with B&M for quite some time) is an engineer firm. They design layouts and calculate forces (as well as other things, but this is only in reference to B&M). When John Wardly works for Alton, he'll come up with a layout, and then it would be sent to Stengle to engineer the forces on the layout.
But B&M really doesn't use Stengle much anymore. In fact, They started doing their own engineering and design work around 2002 or so.
As for the Domain, I remember Carolina Cobra was leaked a while before the announcement, and I can't quite recall if anyone checked the website, but it seems someone on CoasterBuzz did.
And Jarvis, you couldn't have
http://www.jarvisowns.carowinds.com because you do not own the
http://www.carowinds.com domain. You could, however, have
http://www.carowinds.jarvis.com or even
http://www.jarvis.com/IownCarowinds.
I'm still not convinced that a lot of this isn't clever marketing, but we'll know soon enough.
but the theme still worked fine in conveying the message of SPEED.
Speaking of Speed, that ride isn't really themed to NASCAR either. It's just off the NASCAR Cafe, but there isn't one reference to the brand NASCAR in the station or on the coaster. The logo uses checkered flags, and that isn't exclusive to NASCAR.
So you could be totally right.