Mustang gets embarrassed by Intellitecs 73 roadrunner

A stock street Mustang meets its match against a 1973 Plymouth Roadrunner GTX built and sponsored by Intellitec College, packing a methanol-burning, supercharged 440 good for 1,100 horsepower and a 9.20-second quarter mile at 150 mph. Viewers have spent over a decade arguing in the comments about whether it even counts as a fair race. It does not, and that is exactly the point. Watch the numbers do the talking once the tree drops.

A stock street car lining up against a full-on drag car is not really a fair fight, and the comment section knows it, but that has not stopped this clip from racking up more than fifty-three thousand views and a decade of arguments in the replies. The car doing the embarrassing is a 1973 Plymouth Roadrunner GTX built and sponsored by Intellitec College in Colorado Springs, and the number attached to its supercharged 440 tells you almost everything before it even leaves the line. What the video does not spell out up front is just how lopsided a 1,100-horsepower, methanol-burning Mopar against a showroom Mustang really looks once the tree finally drops.

The Numbers Behind the Beating

The numbers behind this particular beating are not subtle. The featured 1973 Roadrunner GTX runs a supercharged 440-cubic-inch big block on methanol fuel, producing roughly 1,100 horsepower while the car itself weighs somewhere around 3,500 pounds, a power-to-weight ratio that has almost nothing in common with anything that ever left a Chrysler assembly line. The pass in question clocks in at 9.20 seconds at 150 miles per hour, numbers that belong firmly in purpose-built drag car territory rather than anywhere near street-legal cruising. Against that kind of build, a stock Mustang was never really the point of the exercise, it was simply the closest thing available to race that day.

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Built by a College, Not a Backyard

Part of what makes this build memorable is who put it together. The car carries sponsorship from Intellitec College in Colorado Springs, an automotive trade school using the Roadrunner as a rolling demonstration of what its program could produce. That is a detail worth sitting with, since it turns this from a random backyard build into something closer to a recruiting tool and a training exercise rolled into one, built by students and instructors putting classroom knowledge directly onto the quarter mile where it either works or it does not.

Why the Roadrunner Nameplate Still Means Something

The Roadrunner nameplate itself carries real weight in muscle car history. Plymouth introduced the Road Runner in 1968 as a deliberately stripped-down, budget-focused muscle car aimed at buyers who wanted straight-line performance without paying for chrome and luxury trim, right down to licensing the Warner Bros. cartoon character and its horn sound for the car’s identity. The GTX badge on this particular car marks it as the more upscale sibling to the base Road Runner, but the underlying philosophy, big engine, minimal fuss, was always the same across the lineup. Decades later, a methanol-burning 440 wearing that badge is still very much in keeping with the nameplate’s original spirit, just turned up considerably.

The Stock Mustang Never Had a Chance

The mismatch here is not really close once actual numbers enter the conversation. Even a healthy, well-maintained stock 5.0-liter Mustang from this era typically runs somewhere in the mid-thirteen to low-fourteen-second range in the quarter mile, a perfectly respectable number for a showroom car. A 9.20-second pass exists in an entirely different category, the kind of territory reserved for cars built specifically to go that fast rather than cars that happen to go fast as a side effect of being fun to drive. The Mustang was competitive against most things it might encounter on a public road. It was never going to be competitive against this.

An Eleven-Year-Old Video Still Finding New Fans

One comment captures something genuinely strange about how old drag racing footage circulates online: an eleven-year-old video just shows up in my recommendations, one viewer wrote, treating the algorithm’s decision to resurface a decade-old clip as its own small mystery. That kind of unpredictable rediscovery keeps footage like this alive well past its original upload window, introducing it to entirely new audiences who were not around, or were not yet watching car content, when it first went up. A clip built to settle one afternoon’s bragging rights ends up having a shelf life measured in decades instead.

The Rivalry That Never Gets Old

Running underneath all of it is a rivalry that predates this specific video by decades: Mopar versus Ford, and the tribal loyalty that comes with picking a side. Mopar or no car, one commenter wrote, a line that shows up constantly in threads like this one regardless of which specific cars are actually racing. That kind of brand loyalty rarely bends to evidence, and a lopsided win like this one only reinforces convictions that were already firmly in place well before the video started playing, on both sides of the argument.

What a 9-Second Roadrunner Represents Today

A genuinely built, 9-second Roadrunner like this one occupies a different tier in today’s collector market than a stock or mildly modified example of the same car. Purpose-built drag Mopars carrying documented, serious horsepower numbers appeal to a narrower but deeply committed buyer, one chasing quarter-mile bragging rights rather than concours-correct originality. That the car came out of a college automotive program only adds to its story, a piece of provenance that separates it from the thousands of similar-looking Roadrunners built in garages across the country with far less documentation behind the build.

There is also a broader lesson buried in a matchup like this one about reading a race before it happens. Casual bystanders at a strip often assume a recognizable street car nameplate like Mustang should be competitive against anything else in line that day, without accounting for the enormous gulf between a showroom car and a purpose-built methanol drag car wearing similar sheet metal. Spend enough time around a track and that instinct gets trained out of you fast. The visual comparison, one muscle car against another, tells you almost nothing about what is actually happening underneath either hood. That gap is exactly what makes clips like this one worth revisiting years later. Nobody in the staging lanes that day was fooled for a second. The gap was obvious from the burnout box onward. Even the crew running the tree could see it coming.

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