The Dodge Demon Holds a Guinness World Record for the Quarter Mile – A Porsche 911 Turbo S Just Challenged It Anyway

A factory-built 808-horsepower Dodge Demon versus a 641-horsepower Porsche 911 Turbo S sounds like a mismatch on paper. But the Porsche’s all-wheel-drive launch has quietly beaten cars with twice its power before, and this quarter-mile showdown puts that reputation to the test. Here’s what’s really deciding the race, and it isn’t horsepower.

On paper, this shouldn’t even be a contest. The Dodge Challenger SRT Demon is the car Dodge built specifically to erase every quarter-mile record a production vehicle had ever set, and it did exactly that — a 9.65-second quarter mile that Guinness World Records certified as the quickest of any production car in history. Now put that 808-horsepower missile on a drag strip against a Porsche 911 Turbo S, a car running less than half the Demon’s cylinder count out of an engine that looks almost modest next to a supercharged 6.2-liter V8. carwow’s Mat Watson and Yianni lined the two up for exactly that showdown, and what happens next says less about horsepower than it does about something far more decisive on a drag strip: where all that power actually ends up going. The comments under this video have been arguing about the result for years, and once you see the specs side by side, it’s easy to understand why.

In the video, Watson climbs behind the wheel of the Demon — borrowed for the day from fellow YouTuber CS Panda — while Yianni takes the Turbo S. Before the countdown even starts, Watson lays out exactly why this shouldn’t be close: the Demon’s supercharged V8 is putting out 808 horsepower and 717 lb-ft of torque through the rear wheels alone, more than enough on paper to bury a car with less than half its displacement. But he also flags the catch immediately — this isn’t the Turbo S’s first quarter-mile fight on the channel, and it has quietly built a reputation for running times under 10.5 seconds almost every time it’s asked, regardless of what it’s lined up against.

How Dodge Built the Quickest Production Car on Earth

The Challenger SRT Demon wasn’t designed as a daily driver that happened to be fast — it was engineered backward from a single, specific goal: legally hold the quickest production-car quarter-mile time in the world. Dodge’s engineers started with the Hellcat’s supercharged 6.2-liter Hemi V8 and pushed it further, fitting a larger 2.7-liter supercharger, a dedicated air-induction system capable of chilling intake air to as low as 40°F using the car’s own air conditioning system, and a transmission brake that locks the output shaft at launch so the engine can build revs against a stalled driveline before the light even turns green. On 100-plus-octane race fuel, the result was 840 horsepower and 770 lb-ft of torque. On the 91-octane pump gas most owners actually run, it’s a still-savage 808 horsepower and 717 lb-ft (972 Nm) — the exact figures under the hood of Watson’s test car in this video.

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When Dodge finally ran the Demon down a real drag strip in 2017, it clocked that 9.65-second quarter mile at 140 mph, a time that still stands as the Guinness World Record for the quickest production car ever built — a record that predates, and technically still outpaces, plenty of cars costing five times as much. The Demon also became the first production car in history to lift its front wheels off the ground under acceleration, popping an 89-centimeter wheelie that Dodge leaned into rather than downplayed in its marketing. Only 3,300 were built for the 2018 model year, each one VIN-matched to its own dedicated set of drag radials, which is a large part of why a clean Demon still commands serious money on the used market years later.

The Demon Crate: How Dodge Turned a Muscle Car Into a Drag-Strip Tool Kit

Getting a Demon to actually run 9.65 seconds required more than just the car itself. Dodge sold buyers an optional accessory package known as the Demon Crate — a wooden crate, delivered separately to the dealership, holding a set of skinny 15-inch drag-spec front wheels and tires, a conical air filter, a replacement instrument panel switch with the high-octane race-fuel button, a Demon-branded impact gun and jack, and, most importantly, the performance powertrain control module that unlocks the full 840-horsepower race-fuel tune. Dodge priced the crate, which it valued at over $6,000 in parts, as a $1 option. It’s a strange, almost absurd level of factory support for backyard drag racing, and it underlines just how single-mindedly the Demon was built around one number: the clock at the far end of a quarter-mile strip.

The Quiet Threat: Why the 911 Turbo S Doesn’t Need a Wheelie to Win

The 911 Turbo S doesn’t chase headline records the way the Demon does, and that’s entirely by design. Porsche’s flagship 911 variant has spent decades refining a formula built around all-wheel-drive traction, a twin-turbocharged flat-six mounted behind the rear axle to load weight directly over the driven wheels, and a dual-clutch PDK gearbox that fires off shifts in milliseconds without ever interrupting torque delivery. The version in this video makes 641 horsepower and 590 lb-ft of torque from a 3.8-liter engine — less than half the Demon’s displacement — yet independent testing has repeatedly clocked the Turbo S running quarter-mile times in the low-10-second range, putting it within shouting distance of cars carrying two or three times its power output.

That reputation exists because of one word: traction. The Turbo S puts its power down through all four wheels via Porsche’s launch control system, a combination engineered to convert nearly every ounce of thrust into forward motion the instant the light changes, with no wheelspin to burn off and no weight transfer to fight. The Demon, by contrast, is rear-wheel drive, leaning entirely on those drag radials to hook up — and even a sticky drag tire can only do so much when 717 lb-ft of torque arrives in one violent surge through two contact patches instead of four. It’s the exact tension playing out in the comments under the video, where viewers keep circling back to the same question: does the Demon’s factory-record pedigree actually survive a head-to-head against a car built around all-wheel-drive precision instead of raw displacement, or does all that horsepower just end up going up in smoke off the rear tires?

That grip-focused approach is a relatively recent development for Porsche’s Turbo line. The original 911 Turbo, internally coded 930, arrived in 1975 with a single large turbocharger bolted to a 3.0-liter flat-six and rear-wheel drive only — a combination that made the throttle feel almost binary, with little response below 4,000 rpm and a sudden, violent surge once boost arrived. That lag, paired with a short wheelbase and all that weight hanging out behind the rear axle, earned the 930 its infamous “Widowmaker” nickname after it caught out more than a few drivers mid-corner. Porsche spent the next several decades systematically engineering that unpredictability out of the car, and all-wheel drive — standard on every Turbo since the 993-generation cars of the mid-1990s — was the single biggest fix. The Turbo S facing off against the Demon in this video is the end result of that fifty-year project: a car engineered specifically to never let a launch go to waste, which is precisely the opposite problem the Demon was built to manage with drag radials and a transmission brake instead.

Horsepower vs. Traction: The Real Story Behind This Race

What makes this pairing worth watching isn’t really which badge wins bragging rights — it’s a clean, real-world demonstration of two completely different philosophies for going fast in a straight line. The Demon is the brute-force American approach: build the biggest engine that will physically fit, force-feed it enormous amounts of cold air, and let raw displacement do the talking, backing it up with a factory-supplied crate of drag-strip hardware when horsepower alone isn’t enough. The Turbo S is the opposite instinct: use precision engineering, all-wheel-drive grip, and turbocharged efficiency to extract nearly identical acceleration out of a fraction of the displacement, with none of the special tires or launch-day prep the Demon needs to get its numbers. Watching the two launch side by side is about as close as you’ll get to seeing that entire debate settled on a quarter-mile strip in real time, and it’s exactly the kind of mismatch-on-paper that keeps drawing comments years after the video first went up.

There’s also a layer of finality to this matchup that wasn’t there when the video was first filmed. Dodge ended Challenger production in December 2023, closing out the Brampton Assembly Plant line that had built the car since 2008 and replacing it with an electric Charger Daytona. The Demon, in its original 840-horsepower form, was always going to be a one-off — Dodge later built a “Demon 170” successor with over 1,000 horsepower on E85 fuel, but nothing will ever repeat the original’s specific, slightly unhinged mission of chasing a Guinness World Record with a factory warranty attached. That makes a drag strip pairing like this one feel less like a routine comparison test and more like a snapshot of the exact moment gas-engine muscle cars were still willing to line up against anything on four wheels, wheelie included, and let the timing lights settle the argument.