I don’t see how Chemical Guys and Meguiars product lines or marketing are similar at all.
Chemical guys markets towards the casual enthusiast and at most the prosumer.
Meguiars has several product lines but they cater to a specific market and aren’t redundant the way Chemical Guys is, i.e. their Mirror Glaze products aren’t redundant to their Ultimate line, the same way the Ultimate line doesn’t replace the Detailer line of products to the people who buy them.
And the Detailer line serves little to no purpose to the people who use the Mirror Glaze products because they’re not body shop safe.
Chemical Guys on the other hand probably sells 6-8 or more different “spray detailers” or “car wash soaps” in 16oz. bottles to the same consumer and they all basically do the same exact thing.