Hypercar builder John Hennessey joins Joe Rogan to talk extreme horsepower, his scrappy origin story, and a deep dive into MMA, comedy, and cold plunges.

John Hennessey: Founder and CEO of Hennessey Performance Engineering and Hennessey Special Vehicles, builder of extreme high-horsepower cars and trucks including the 1,817-horsepower Venom F5 hypercar.
John Hennessey explains how a tough, abusive childhood and a chip on his shoulder fueled a 40-year career building absurdly powerful vehicles, from modifying Dodge Vipers in the early 90s to the bespoke, carbon-fiber Venom F5. He traces his path from amateur Pikes Peak racing and an asbestos-cleanup business into a tuning empire that has modified roughly 15,000 vehicles. Joe shares his own origin story through Taekwondo, kickboxing, stand-up comedy, newspaper routes, pool halls, and how he fell into UFC interviews and then podcasting. The two riff on car culture, Top Gear's staged stunts and reckless antics, and Jay Leno's legendary garage. They close on health, with Hennessey describing quitting Ritalin after 25 years and replacing it with daily cold plunges, while Joe details his cold plunge, sauna, and fasting routines.
Apple
“one of the things I love about Apple carplay is you don't have to take your hands off of anything”— Joe Rogan
Jay Leno
“really one of the best of it is Jay Leno like Jay Leno's garage is fantastic it is great”— Joe Rogan
Morozko Forge
“I have a marasco cold Plunge at home Forge and here we have one called a blue cube okay and they're both very very good”— Joe Rogan
Blue Cube
“here we have one called a blue cube okay and they're both very very good”— Joe Rogan
Apple
“they all die except the original regular air pumps whichever one they sell they'll sell like a Gen 2”— Joe Rogan
Hennessey
“but we've sold 36 of those the Venom F5”— John Hennessey
Hennessey
“you made me uh 1 000 horsepower TRX yeah that car is so stupid it is it's so stupid”— Joe Rogan
Hennessey
“we're working on a thousand horsepower package for Velociraptor one thousand so it would compete with the mammoth”— John Hennessey
Hennessey
“I have a problem with the name Mammoth okay I love the truck but I got a problem”— John Hennessey
Hennessey
“he's got a thousand horsepower Camaro like what the are you doing Exorcist like Jesus Christ”— Joe Rogan
Tesla
“that's like 700 more horsepower than a Tesla plaid yeah it's like taking a McLaren 765lt”— John Hennessey
McLaren
“it's like taking a McLaren 765lt and adding a thousand horsepower to it something nobody needs”— John Hennessey
Turtlebox
“I got this uh Jam Box I put in the backseat the turtle box and I just turn on my AC DC and go out cruising”— John Hennessey
AC/DC
“I put in the backseat the turtle box and I just turn on my AC DC and go out cruising around”— John Hennessey
Mitsubishi
“it was the Mitsubishi 3000GT VR4 so it was all-wheel drive Twin Turbo V6”— John Hennessey
Dodge
“I've got one of the first Dodge Vipers coming it was actually a model year 92”— John Hennessey
Toyota
“my Land Cruiser also has rock sliders inside of it and so because it's lifted if someone's going to t-bone me”— Joe Rogan
Cadillac
“I've got a Cadillac CTS-V wagon manual and I'm pulling out of a store and some lady at Christmas”— Joe Rogan
NBC
“so you're the original Fear Factor then they cast you for a reason in that deal”— John Hennessey
UFC
“Stefan Bonner rest in peace he just died and Forest Griffin had the most insane fight in the finals of the ultimate fighter”— Joe Rogan
Ford
“have you experienced the raptor r yet I have not it looks amazing though they're expensive”— Joe Rogan
Chevrolet
“how much better is the handling on the Z06 with the wider body and The Wider tires”— Joe Rogan
McLaren
“like a McLaren F1 like it'd be 20 million dollars someday I respect that you can drive that”— John Hennessey
David Ayer
“it was a Brad Pitt movie Fury so it's a scrappy tank guys they're over in Germany”— John Hennessey
BBC
“I used to think that when I would watch Top Gear and watch the yeah Stig sure roll around the track”— John Hennessey
Amazon
“what's the Amazon show called again uh The Grand Tour right The Grand Tour”— John Hennessey
Breitling
“he's got one of these Breitling watches where you pull out the little cord and it tells the satellite that you're stranded”— John Hennessey
Novartis
“I started taking Ritalin okay and I've been taking Ritalin you know uh for almost 25 years”— John Hennessey