Stellantis is selling a 900-HP Ram 1500 Rumble Bee SRT: it’s a true custom one-of-one

Ram and UFC are auctioning a 900-HP 2027 Rumble Bee SRT and a Ram V10 SRT-10 in Vegas for charity on Sept 11. What you need to know.
Ram 1500 Rumble Bee SRT

Las Vegas is no stranger to unhinged financial decisions, but on September 11, 2026, the Barrett-Jackson auction stage will host a pair of Ram pickups that push the absolute limits of mechanical sanity.

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In a joint charity initiative by Ram, UFC, RealTruck, and Barrett-Jackson, two of the loudest, most glorious monuments to gasoline overconsumption ever built will be part of a single combined lot. Every single dollar raised will go directly to the Folds of Honor Foundation and the UFC Foundation, with Barrett-Jackson generously waiving all buyer and seller fees. UFC head Dana White will even join Craig Jackson on stage, offering the winning bidder a VIP package to a future UFC event.

Ram 1500 Rumble Bee SRT

The headliner is the very first retail production 2027 Ram 1500 Rumble Bee SRT, transformed into a true custom one-of-one. In stock form, the truck is already borderline unresponsible, squeezing 777 HP out of a 6.2-liter supercharged Hellcat HEMI V8 to deliver 0-to-60 mph in 3.4 seconds, an 11.6-second quarter-mile, and a 170 mph top speed.

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But because nuance is completely dead in Detroit, this specific unit receives a 3-liter Direct Connection supercharger that pushes total output past 900 HP. It also gets a Magnaflow stainless steel exhaust, Brembo calipers, 22-inch wheels, a custom hand-painted Molten Red Pearl and Diamond Black Crystal Pearl two-tone finish, and a commemorative console badge to remind passengers why their hair is standing on end.

Sharing the stage is its ideological ancestor: a 2005 Ram 1500 SRT-10, born in an era when Dodge engineers decided that dropping an 8.3-liter, 500-HP Viper V10 into a regular-cab pickup was a reasonable career choice. That truck famously bagged a Guinness World Record as the world’s fastest production truc. This unit appears proudly overhauled by RealTruck, ProMotorsports, and Ram’s official SRT and Mopar design teams.

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2005 Ram 1500 SRT-10

Dressed in aggressive yellow-and-black Viper-inspired graphics, it packs Alea black leather seats, PowerStep running boards, a Pro X15 soft tonneau cover, and Husky Liners. As Stellantis executive Tim Kuniskis noted, the classic SRT-10 paved the way for today’s 900-horsepower madness.