Rivian has bad news for customers who wish to pair a four-motor system with the biggest battery pack: they can't. According to a post made by Thomas on RivianForums, the automaker is sending out emails notifying pre-order holders of Max Pack Rivian R1T trucks that they can no longer combine this with the Quad-Motor configuration.

The combination of the two means maximum power backed by the largest battery pack on offer for the ultimate Rivian experience. Now that the two can't be paired, those who specified an all-inclusive range-topper will no longer have the satisfaction of experiencing the fully loaded machine they have been waiting so patiently for.

Interestingly, Rivian says it will make the Quad Motor + Max Pack configuration available at a later date.

According to the email, Rivian plans to make a few changes to the production of its cars from early next year. R1T trucks with the Max Pack battery will now only be available in a Dual-Motor AWD configuration. This equates to a target range of about 400 miles, a power output of 600 horsepower, and a 0-60-mph time of 4.5 seconds. An enhanced version that uses the same battery and motor combo will produce 700 hp and drop the 0-60-mph time down to 3.5 seconds. This is a far cry from the 835-hp Quad Motor setup. Both versions get a towing capacity of 11,000 pounds. Rivian says it will prioritize Max Pack pre-order holders for its earliest Dual-Motor deliveries ''where it's possible".

"This update introduces a more energy-dense Max pack design that pairs with our Dual-Motor drive system to deliver long range with outstanding performance at a lower price point," reads the email. "Making this change supports our continued focus on simplifying the production process as we scale."

The email goes on to say that those that would prefer to maintain a Quad-Motor configuration and the possibility to accelerate the delivery date to early 2023 should change their R1T configurations to a Quad-Motor and Large pack combo. This configuration is capable of an EPA-estimated 328 miles of range when paired with 21-inch wheels. Those that make this selection now will have a delivery window estimate in January during Rivian's scheduled timing update. Rivian says it will offer the Quad-Motor and Max Pack battery again but gives no clear timeline in the email.

Some commenters have suggested that this is happening because Rivian will lose too much money on the configuration unless it hikes prices considerably. When the automaker drastically hiked prices earlier this year, it had severe consequences. And although pre-orders for both the R1T and the R1S SUV are going through the roof, this is yet another disappointment for those who are facing continual delays on features or, in some cases, even cancellations.

In October alone, Rivian removed the option of a powered tonneau cover and paused orders on the Camp Kitchen and Gear Tunnel so that they could be redesigned. It seems that while the R1T and its sibling are excellent products in concept, they may be too complex, too expensive, or too highly demanded for Rivian to fully equip them at current pricing. Here's hoping 2023 brings better news.