Haven’t seen much about the Thor lithium system yet, or its cost, but a MotorHome Magazine article on Embassy Class B shows a breakdown of costs which is interesting. It puts total costs in perspective.
$7,895 — Lithionics 600-Ah battery and 3kW Xantrex inverter
$3,695 — 280-Amp second alternator
$4,495 — auto engine start
https://www.motorhome.com/top-storie...v-prl-class-b/
At least it’s lower than the Volta system Winnebago uses on Travato, and shows costs can get much lower still. I like the a la carte pricing so buyers can get only what they need.
This Class B also comes with large (for a van) 6.8 cubic-foot 12 Volt refrigerator, as well as a 20,000 BTU/hr 12 Volt air conditioner. I personally don’t see the tent option very practical.
With both Ford and GM now offering dual alternators from factory at a small fraction of the cost, maybe FCA/RAM will see the demand and add option (or its equivalent) to ProMaster van. Auto engine start could also be done by OEMs at much lower cost.