I have zero doubt that LRA will make an aux tank.
Yeah totally. In fact I think in the South African tour videos they shared that they have been working with after market players like ARB, AluCab, Frontrunner etc. So a LRA or Brown Davis tank will definitely be in the works.
There is some nice space between the frame rails and the rear end for an aux fuel or water tank.
I was thinking the same thing, Paachi and Beowulf. And while it might not be available at launch, I'm really curious how "integrated" the aftermarket partnerships will be. For example, will I be able to add an ARB bar and a frontrunner rack in the configurator so that my Grenadier shows up at my house with all those bits already installed and included in the purchase price? And if yes, how does that compare with the prices of me dropping the Gren off at my local 4x4 shop and having them do it? (some Jeep dealers seem to have this model where you can add AEV accessories like lifts and such on a new vehicle purchase, but they are way more expensive than having an aftermarket shop do the same job with the same parts).
It's probably moot for me as I like installing stuff myself, but if the value was there, I'd be happy to pay a bit more to have the Ineos show up turn-key with the accessories I want.
(Especially if delivery is in the winter...I've installed one bull bar in -30 Celsius, and I don't care to do another one!)