Rivian won't limit its longest-ranged battery pack to the R1T pickup. Founder RJ Scaringe has announced that a configuration with the Max Pack battery and dual-motor all-wheel drive will be available sometime this fall. The company projects a 390-mile range. Crucially, you won't lose the seven-person seating in the process. You can take the whole family on a road trip without as many charging stops as before.
The EV maker hasn't mentioned pricing for the Max Pack trim. As Autoblognotes, the option adds $16,000 to the price of the R1T but extends the range to 400 miles. At present, R1S buyers have to be content with a $6,000 upgrade to the not-yet-EPA-rated Large Pack. You can expect a claimed 260 miles with the stock battery.