I came from a Telluride to the R1S...I do miss the captains chairs but thats about it...
If I were at the same point OP is...I'd lean to the Rivian for one hallmark reason - the software architecture and frequency of updates. These are supercomputers on wheels...
The video clarified what he said on the reveal. He didn't go into battery configs during the reveal unfortunately.
The base, small battery, single motor which I presume is 45k will have 270 miles of range
quickly shifting from an EV Pickup company to something for everyone in the ecosystem. I think RJ quickly realized how much the S was becoming more popular versus the T and they acted on it.