No oils in America are true group IV base. We don't have that option unless you go with something like Renewable Lubricants (bio-syn Xtra) which has been regarded quite well among Audi owners. Supposedly German Castrol (hard to find these days, but says on the bottle "Made in Germany", is a real group IV base.
I don't believe that is accurate. Group IV/V oils are available in USA but they are difficult to find at your FLAPS / McParts, or at least difficult to confirm as Group IV (PAO) and Group V (esters). I use Red Line in all my vehicles besides the LR4, and it's a Group IV/V base stock. Some of the high-end products from Amsoil and Motul are also Group IV/V. Most people don't want to pay the $12-$15 per quart pricetag on these oils. The so-called "fully synthetic" Group III oils available at $6-$8 per quart sound like the same thing for half the price, but they are not the same. I'm not aware of any Group IV/V oil in that price range.
Some manufacturers offer a handful of Group IV/V oils (i.e., Mobil-1) but the vast majority of current Mobil-1 products in USA are Group III. Worse yet, only a few viscosities are offered by Mobil-1 in Group IV/V; so they aren't an option for my needs. As always, YMMV, etc. A bit more info on base stocks is at this link:
https://en.wikipedia.org/wiki/Synthetic_oil
About the Liqui Moly AA oil, yes, as I wrote in my previous post, it is not "approved by JLR. However it is "recommended" by Liqui Moly. And yes I understand those are 2 different things. I simply found it interesting that Liqui Moly shows four different products as suitable for the AJ133 5.0L engine used in the LR4 V8; while only one of them is supposedly approved by JLR.