Ford Killed the Shelby Mustang in 1970 — It Took 37 Years and 760 Horsepower to Bring It Back

From a 36-car race-only GT350R to a 760-horsepower GT500, the Shelby Mustang’s six-decade story includes a near-death gap most fans don’t know about. Here’s the real timeline, generation by generation.

In 1965, Ford and Carroll Shelby built just 36 race-ready GT350R Mustangs — and then spent the next five years trying to turn that lightning into a street car ordinary buyers could park in a driveway. It worked, for a while. Then, without much warning, Ford walked away from the Shelby name entirely, and for 37 years the most storied performance badge in American history simply didn’t exist on a Mustang. When it finally came back in 2007, it returned with more horsepower than any factory Mustang had ever produced — and the number hasn’t stopped climbing since. A viral recap tracing every Shelby Mustang from 1965 to 2025 has reignited an old argument among fans: which era actually deserves the crown?

The 36 Race Cars That Started Everything in 1965

The video, a fast-cut tribute from channel ArtKiz, opens where the Shelby story actually begins: the 1965 GT350R. Ford built roughly 562 standard GT350 fastbacks that year, but only 36 were finished to R-specification — stripped of carpet and glass, fitted with a 34-gallon fuel tank, and tuned with a high-rise aluminum intake, a Holley four-barrel, and Cyclone Tri-Y headers. The street GT350’s 289 V8 was rated at 271 horsepower; Shelby’s race version is generally cited around 350, though period sources vary on the exact figure. What isn’t in dispute is what the car did once it hit the track — the GT350R won five of six SCCA divisional championships and the national title in its debut season, instantly making “Shelby” synonymous with a Mustang built to actually race, not just look fast in a showroom.

That racing pedigree is why the GT350R still tops so many fan lists today. It’s a tiny production run — rarer than almost anything that came after it — built with a singular purpose that none of Shelby’s later, more comfort-oriented cars quite matched.

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Why Ford Pulled the Plug on Shelby for 37 Years

The next few years moved fast. The 1967 GT500 added a 428 V8 (initially a Police Interceptor-spec engine), and by April 1968 that engine had become the 428 Cobra Jet, badged as the GT500KR — “King of the Road.” Ford dealers sold roughly 1,570 KRs that year, split between fastbacks and convertibles, and while the factory rating hovered in the 335-355 horsepower range, multiple period reviewers have argued the real output was closer to 400. Shelby also leaned hard into a rental-car partnership with Hertz, putting hundreds of black-and-gold GT350s into Hertz’s “rent-a-racer” fleet — 1966 saw roughly 1,000 of them, and even by 1969, when the program had shrunk, Hertz still took delivery of about 152 cars.

Then it just stopped. Carroll Shelby’s direct involvement wound down after the 1968 model year, and the 1969 cars — leftover inventory largely carried over with new VINs — were sold off as 1970 models. After that, there was no new Shelby Mustang. Not in 1971. Not in 1985. Not for the entire muscle car revival of the 2000s’ early years. For 37 years, the Shelby name existed only in memory and in the garages of people who’d bought one new.

What These Cars Are Worth to Collectors Today

That 37-year gap is a big part of why the first-generation cars command such steep prices now — there simply aren’t many of them, and Ford never made more. The 36 GT350R race cars are effectively unobtainable; most that survive sit in museums or long-term private collections and rarely change hands publicly. The Hertz GT350s occupy a strange, fun corner of the hobby: Hertz’s own rental program meant hundreds of 1966 customers got to drive a race-bred Mustang for a weekend, and decades later those surviving “Rent-A-Racer” cars have become collector favorites precisely because of that gimmick. Recorded sale prices for genuine 1968-69 GT350 Hertz cars have landed anywhere from the high five figures to over six figures depending on condition, documentation, and originality — a wide enough range that any buyer chasing one should lean on a verified Shelby registry and a Marti Report before writing a check, since survivor counts are small and fakes do exist.

760 Horsepower Later: The GT500’s Modern Comeback

When Ford finally revived the badge in 2007, it wasn’t a half-measure. Built on the new S197 Mustang platform through Ford’s Special Vehicle Team working with Shelby directly, the new GT500 used a 5.4-liter supercharged V8 borrowing cylinder heads, piston rings, and bearings from the Ford GT supercar’s engine. Ford’s own certification testing landed the car at 500 horsepower and 480 lb-ft of torque — 25 more than preliminary estimates — making it, at the time, the most powerful factory-built Mustang ever sold. The first production unit sold at auction for $600,000, with proceeds going to the Carroll Shelby Children’s Foundation.

From there, the arms race never really slowed down. A 2008 GT500KR revival paid direct tribute to the 1968 original, a 2011 GT350 45th Anniversary edition brought the GT350 nameplate back after decades away, and a 2014 Shelby Super Snake pushed the supercharged formula further still. Ford then split the lineup in two: the 2016 GT350 and track-focused GT350R leaned on a naturally aspirated, flat-plane-crank 5.2-liter V8 built for cornering, while the 2020 GT500 went the opposite direction entirely — a supercharged version of that same 5.2-liter block, rated by Ford at 760 horsepower and 625 lb-ft, paired to a seven-speed dual-clutch gearbox. Ford’s own pre-launch claim put the quarter-mile under 11 seconds; some dealer spec sheets have since listed figures closer to 10.7 seconds at over 130 mph, though those numbers aren’t tied to an independently verified third-party test. Either way, it’s a car that would have seemed like science fiction to the engineers building 271-horsepower GT350s in 1965.

The most recent entry in the video, a 2025 Super Snake built on Ford’s S650 Mustang platform, keeps the formula going under Ford Performance and Shelby American’s continued partnership — proof that six decades after that first 36-car race-only batch, Ford still hasn’t found a reason to stop building faster ones.

Which Shelby Actually Wins the Argument?

Scroll the comments on the video and you’ll find the split that’s defined Shelby fandom for decades. A large contingent votes for the originals — the 1967, 1969, and 1970 cars — citing a kind of mechanical honesty that later generations traded for technology. Just as many point to 2007 and the 45th Anniversary GT350 as the moment the badge proved it could compete with modern supercars on paper, not just nostalgia. Both camps have a legitimate case: the 1960s cars earned the name on a racetrack with a tiny production run, while the 2000s-and-later cars earned it in a dyno cell and on a timing board, backed by far more rigorous engineering than Shelby’s small shop could manage in the muscle car era.

What’s remarkable, looking at the full 60-year span side by side, is how directly the modern cars trace their DNA back to that first 36-car batch — a small-production, purpose-built performance Mustang, engineered specifically to out-run everything else wearing a Ford badge. The styling changed completely. The headlights went from quad-sealed-beam units flanking a simple grille to the aggressive, functional intakes of the 2020 car, and the “face” of the Mustang shifted from friendly to menacing somewhere along the way, as more than one commenter on the video pointed out. But the mission never did: take the fastest Mustang platform Ford has, and make it faster still.

That consistency is also why the badge survives arguments about which era is “real” Shelby and which is just a marketing exercise. Every generation in the video, from the 1965 race car to the 2025 Super Snake, was built by people who had something to prove against a stopwatch, not just a spec sheet.

Watch the full recap above and tell us in the comments: is the Shelby legacy at its best in the 1960s, or did Ford actually top itself with the modern GT500?