There’s fast… and then there’s completely unhinged.
The Dodge Challenger SRT Demon 170 was already one of the wildest factory cars ever built.
Hennessey took one look at it and decided it wasn’t enough.
So they turned it into something that makes hypercars look… let’s just say, slightly less intimidating.
Meet The 1,700 HP Twin-Turbo Monster
This is the Hennessey Demon 1700, a limited-run build with just 12 units worldwide, that pushes American muscle to the absolute edge.
We’re talking 1,700 horsepower and 1,400 lb-ft of torque at the crank.
That’s not just fast, that’s borderline ridiculous for something you can still technically drive on the street.
It’s Completely Rebuilt, Not Just Tuned
This isn’t a simple bolt-on job. Hennessey essentially tears the car down and rebuilds it from the ground up.
The original supercharged V8 is replaced with a heavily reworked 7.2-liter (440ci) HEMI, now running a twin-turbo setup.
Everything supporting it has been upgraded. Even the intake manifold and turbo system are bespoke, designed in-house with obsessive attention to detail. There’s an upgraded transmission, a billet torque converter, a reinforced driveshaft and differential. and reworked suspension geometry.
Quite literally every component is engineered to survive the kind of stress that comes with four-digit horsepower. At least owners don’t need to worry about the car tearing itself apart the moment they go full throttle.
The Numbers Are Just Absurd
On paper, 1,700 hp sounds insane, and once it’s on the dyno, it gets even more real.
This thing puts down 1,355 horsepower at the rear wheels. Let that sink in for a moment.
To illustrate things more clearly, that’s more power at the wheels than a Bugatti Chiron makes at the crank.
Yes, it has a mild mode, but it’s still completely bonkers. In the “low boost” setting, this Challenger still produces over 1,000 wheel horsepower.
No, You Can’t Have One
If you’re thinking about getting one, you’re too late. All 12 builds are already spoken for… and they weren’t cheap.
You needed a Demon 170 to begin with, plus around $200,000 for the conversion, putting the total somewhere near $300,000.
That sounds like a lot, until you realize it can embarrass multi-million-dollar hypercars.
This Is The Limit Of Modern Muscle
Cars like this don’t exist to make sense.They’re built purely to prove that internal combustion isn’t going away quietly.
When a company like Hennessey Performance builds something like this, it’s about taking things as far as possible, just because they can.