The detail report is up for members.
I have a membership to the online version of Consumer Reports and was able to view the "detailed" report, but even then, they have a long way to go in matching the transparency and detail of something like the IIHS vehicle ratings. I find the IIHS approach much more helpful.
CR has an interesting narrative summary of their new test, and there is some "behind the ratings" info, but not very much. The reader is left with just enough information to wonder what the "basic - better - best" really means, how those scores were derived, and how those ratings were traded off against other factors like ease of use and price to get the overall rating. It's very opaque.
Contrast that with IIHS, where I can easily get the overall vehicle rating and the scores on each of the compoent tests (small overlap, side, etc.).
Then, if that's not enough detail for me, I can drill down and get, for each test, the exact level of cabin intrusion, in centimeters, at multiple points in the vehicle, plus estimated injury measures that include both physical measurements (kN, mm) and their translation into % likelihood of injury.
I can also see a slo-mo, multi-angle video and still photos of the exact test as it was conducted. If that's STILL not enough for me, I can download a PDF of the exact test protocol, which includes practically everything down to what the test dummy had for breakfast that day. And all of of this on a non-subscription, free-to-all website.
I realize that CR somehow has to charge for its services in order to stay afloat, but even then they have a long way to go.
All that being said, I am still glad that they're doing this-- if it works, it will probably press carseat manufacturers to improve their designs in ways that actually improve performance, rather than just new bells and whistles.
I also agree with The Carseat Lady on the point about focusing on convertible seats instead of infant seats. I feel like convertible seats are often forgotten in the focus on infant seats (CR) and booster seats (IIHS), even though in some ways they are the most critical stage.