GMC Syclone History: The Forgotten 90s Super-Truck
You’re sitting at a stoplight in 1991, and next to you is a Ferrari 348 ts—six figures of Italian exotic, mid-engine, prancing horse. The light turns green. You nail the throttle in your black GMC pickup. Four seconds later, you’re two car-lengths ahead and pulling. The Ferrari catches up eventually, sure. But by then, everyone at the diner has already seen the Syclone win.
TL;DR:
The GMC Syclone is the most unlikely supercar-killer ever built. It wasn’t a Corvette or a Viper—it was a compact pickup with a turbocharged V6, all-wheel drive, and a suspension lowered so far you couldn’t haul firewood without scraping. GMC built only 2,995 of them for 1991, plus three more in 1992, then killed it . It beat a Ferrari in the quarter-mile, cost one-fifth the price, and embarrassed every automotive assumption of its era. This is the story of how a rejected Buick experiment became a legend, why Saudi Arabia almost kept them all, and how a handful of Marlboro-red targa-top monsters became the rarest of the rare. Thirty-five years later, the Syclone still isn’t forgotten—and a 750-horsepower “tribute” proves the itch never went away .
Key Takeaways:
- The Syclone was a Buick Grand National that GMC accidentally adopted — Buick engineers stuffed a GNX engine into an S-10, Chevy said no, GMC said yes—but made them swap in a truck V6 because the Buick motor was too expensive .
- Production was outsourced to PAS — GMC didn’t build it themselves. Production Automotive Services in Troy, Michigan, handled the turbo, AWD conversion, and assembly .
- 0-60 in 4.3 seconds, quarter-mile in 13.4 at 98 mph — That’s quicker than a 1991 Corvette ZR-1 and a Porsche 911 Turbo. The Ferrari 348 ts? 0-60 in 6.0 seconds. The Syclone demolished it off the line .
- It was terrible at being a truck — Payload: 500 lbs. Towing: 2,000 lbs. Ground clearance: 6.25 inches. It was a Corvette with a bed, and GMC never pretended otherwise .
- All 1991 Syclones were black — The only color offered. The three 1992 trucks could have been other colors, but only two survive .
- The Saudi Syclone is the rarest of the rare — 113 were exported, 31 came back, and GMC sold them to employees via lottery for $12,500. Today, clean examples fetch $40,000–$50,000 .
- Ten Marlboro Syclones exist with targa tops — Larry Shinoda designed them. They’re red, lowered another inch, and have Boyd Coddington wheels. They are the holy grail .
- Specialty Vehicle Engineering tried to revive it in 2019 — 455 horsepower, supercharged 3.6L V6, 0-60 in 4.5 seconds. They built 100 units on the GMC Canyon platform. It was not cheap ($39,995 conversion plus donor truck) .
The Origin Story: How a Rejected Buick Became GMC’s Halo Truck
Here’s the part that still sounds like bar-stool fiction: The Syclone started life as a Buick.
By 1987, the Buick Grand National and its even nastier GNX variant were dead. The turbo V6 that embarrassed Corvettes and Porsche 928s had no home. A handful of Buick engineers—performance guys who refused to let the turbo die—grabbed a Chevrolet S-10 and shoehorned the 3.8-liter turbo V6 under its hood .
They painted it black, added a bulging hood, and walked it over to Chevy management.
Chevy said no.
They walked it over to GMC. GMC said… maybe. But there was a catch: the Buick V6 was too expensive to certify for truck production, and the turbocharger had a reputation for warranty claims. So GMC told them to use the 4.3-liter Vortec V6 already sitting in the Sonoma .
“It wouldn’t be financially viable to adapt it for production in the truck, and so the project pivoted to using the 4.3-liter V6 already in use in GMC’s trucks instead.” — SlashGear .
That 4.3-liter was essentially a small-block Chevy V8 with two cylinders lopped off. It was a truck motor. It made 160 horsepower in stock form.
The engineers had twelve months to turn it into a Ferrari-killer.
Chart: 1991 GMC Syclone vs. Ferrari 348 ts — The Numbers That Mattered
This is the bar fight everyone remembers. The Syclone didn’t win on paper; it won on the street.
Data sources: Car and Driver, Old Cars Weekly, Motor1 . Ferrari quarter-mile time sourced from Car and Driver test. Syclone price includes optional equalizer; base MSRP was $25,970 .
The Recipe: 280 Horses, 350 Torque, and a Transfer Case from a Van
Here’s how they did it.
PAS—Production Automotive Services—had already built the 1989 Pontiac Turbo Trans Am. They understood forced induction and low-volume assembly. GMC handed them a Sonoma and said, “Make it fast, but don’t break the bank.”
The engine:
- 4.3L LB4 V6 with Mitsubishi TD06-17C turbocharger (8 cm² housing, 14 psi boost)
- Garrett water-to-air intercooler (mounted under the intake manifold)
- Hypereutectic pistons, nodular iron main caps, upgraded head gaskets
- 48mm twin-bore throttle body from the 5.7L Chevy small-block
- Pintle-style individual port fuel injectors
- Result: 280 hp @ 4,200 rpm, 350 lb-ft @ 3,600 rpm .
The drivetrain:
- 4L60 four-speed automatic (same basic architecture as the Corvette’s 700R4)
- BorgWarner 4472 transfer case from a Chevrolet Astro van
- Torque split: 35% front, 65% rear with a limited-slip differential
- Full-time all-wheel drive. No selector. No 2WD mode. It was always on .
The chassis:
- Lowered 2 inches front and rear. Ground clearance: 6.25 inches.
- Torsion bars up front, two-stage semi-elliptic leaf springs out back
- Front disc brakes, rear drums—but four-wheel ABS, a first for any production pickup .
The weight: 3,521 pounds. Heavier than a Ferrari, but the instant boost and AWD launch made it irrelevant.
Interesting fact: The gauge cluster was lifted from the Pontiac Sunbird Turbo, which had been discontinued the year before. GMC saved money, and nobody noticed .
What It Was Like to Drive: Glorious and Compromised
The good:
- Off the line, it was violent. 350 lb-ft at 3,600 rpm with no lag. The 4L60’s first gear was short; the truck lunged.
- Car and Driver clocked 0-30 in 1.6 seconds. That’s faster than a Ferrari F40 .
- The AWD made it idiot-proof. You didn’t feather the throttle; you stomped and held on.
The compromises:
- Top speed was electronically limited to 124 mph (some sources say 126). The torque curve dropped off, the aerodynamics were terrible, and the truck was never meant for autobahn runs .
- Heat soak was real. On a cool day, the Syclone was a monster. On a hot day, the intercooler struggled, and the ECU pulled timing. Car and Driver noted that in warmer temps, the truck experienced “significant power losses” .
- It couldn’t tow anything substantial (2,000 lbs max) and the payload was laughable (500 lbs). A 1991 Toyota Camry could tow the same weight .
“The Syclone was good at neither of those things. It was only rated for a 500-pound payload and towing capacity of 2,000 pounds.” — SlashGear .
The verdict then: It was a sports car disguised as a pickup, and everyone who bought one knew exactly what they were sacrificing.
The Saudi Syclones: The Lottery Truck You Couldn’t Buy
This is the weirdest footnote in Syclone history, and it deserves its own spotlight.
GMC exported roughly 150 Syclones during the 1991 production run. About 113 of them were destined for Saudi Arabia. These trucks were modified:
- Metric instrument cluster (km/h instead of mph)
- Leaded fuel calibration chip (Saudi still sold leaded premium)
- Resonator in place of the catalytic converter (no emissions testing required) .
The problem: Nobody in Saudi Arabia wanted them.
Dealers sat on the trucks. Orders didn’t materialize. GMC eventually shipped 31 unsold Saudi Syclones back to the United States. But instead of selling them through normal channels, GMC did something unprecedented:
They held an internal employee lottery.
Winning employees could buy a Saudi Syclone for $12,500—less than half the original MSRP. They had to take delivery through a dealership, but the discount was staggering.
“It is alleged that not many employees knew of the lottery to purchase one of the Saudi Syclones, so almost everyone who entered got the chance to buy one, which upset a lot of GM employees in various other divisions who felt they missed out.” — Wikipedia / International SyTy Registry .
The remaining 69 trucks were scattered across Europe and sold on a “make us an offer” basis. GMC just wanted them gone.
Today, the Saudi Syclone is the most collectible variant outside the Marlboro cars. They don’t have catalytic converters, they have weird gauge clusters, and there are only 113 of them—fewer than the number of Ferrari F40s ever built.
Timeline: The Rise, Fall, and Resurrection of the Syclone
This visual tells the story from Buick’s skunkworks to SVE’s supercharged tribute.
Data source: SlashGear, Motor1, J.D. Power. Cultural impact scale is illustrative based on publication frequency and collector auction data .
The Special Editions: Ten Targa-Top Red Marlboro Monsters
If the standard Syclone is rare, the Marlboro Syclone is nearly mythical.
In 1992, Phillip Morris ran the “Marlboro Racing ’92” sweepstakes. Ten winners received a fully customized Syclone, transformed by ASC (American Sunroof Company) and designed by Larry Shinoda—the same man who designed the Corvette Stingray and Boss Mustang .
The specs:
- PPG “Hot Licks” red paint with white strobe stripes
- Targa-style removable roof panel with storage mounts in the bed
- Boyd Coddington “Cobra” wheels with Marlboro center caps
- Recaro leather seats with Simpson five-point racing harnesses
- MOMO Evolution steering wheel
- Bell Tech suspension, lowered an additional inch (total 3 inches)
- Borla stainless exhaust, PROMPaq performance chip
- Guidon hard tonneau cover
The experience: Winners didn’t just get a truck. They got an all-expenses-paid day with the Marlboro IndyCar team, VIP pit passes, and enough swag to fill a closet. The trucks were delivered to their local dealerships; winners paid the taxes and luxury fees .
How many exist? Ten. All ten are accounted for by collectors. They rarely change hands, and when they do, the price is undisclosed—but you can assume it’s well into six figures.
The PPG Syclone: One of the three Indy 500 pace trucks (used in 1992, though not the official pace car) was later converted into the PPG Syclone—a full race-support vehicle with a fuel cell, fire suppression, water-cooled brakes, and a wild magenta/aqua/silver paint scheme. It sat in the GM Heritage Collection until 2009, when Barrett-Jackson sold it for $66,000. It now lives in Colorado .
The Typhoon: The SUV That Outlived the Truck
When the Syclone died, its drivetrain didn’t.
The GMC Typhoon used the exact same 4.3L turbo, the same AWD system, the same 4L60 transmission. But instead of a lowered Sonoma, it was a GMC Jimmy SUV—heavier, taller, and slightly slower .
Production: 1992–1993. Total built: 4,697 .
Performance: 0-60 in 5.3 seconds (still rapid), quarter-mile in 14.1. The extra weight cost it about 0.9 seconds to 60 compared to the Syclone .
The irony: The Typhoon outsold the Syclone, stayed in production twice as long, and arguably invented the “performance SUV” segment. The Porsche Cayenne Turbo owes this truck a nod.
Collector values today: Oddly, Typhoons are cheaper than Syclones. A #3 Condition Typhoon (driver-quality) averages $20,000; low-mileage examples can hit $50,000+. The Syclone, being rarer, commands a premium .
Comparison Table: Syclone, Typhoon, and the 2019 Revival
| Model | Production Years | Units Built | Engine | Horsepower | Torque | 0-60 | Base Price (Then) | Collector Value Today |
|---|---|---|---|---|---|---|---|---|
| 1991 GMC Syclone | 1991 (plus 3 in ’92) | 2,998 | 4.3L Turbo V6 | 280 hp | 350 lb-ft | 4.3 sec | $25,970 | $35k–$50k (excellent) |
| 1992–93 GMC Typhoon | 1992–1993 | 4,697 | 4.3L Turbo V6 | 280 hp | 350 lb-ft | 5.3 sec | $29,000 | $20k–$50k |
| 1992 GMC Sonoma GT | 1992 | 806 | 4.3L V6 (NA) | 195 hp | 260 lb-ft | N/A | $16,000 | $15k–$25k |
| 2019 SVE Syclone | 2019 | 100 | 3.6L Supercharged V6 | 455 hp | 425 lb-ft | 4.5 sec | $39,995 + donor | $70k–$90k (est) |
Sources: SlashGear, Motor1, Old Cars Weekly, J.D. Power . Sonoma GT was a sport appearance package, not turbocharged.
The Revival That Wasn’t: Specialty Vehicle Engineering’s 2019 Tribute
In 2019, Specialty Vehicle Engineering—a separate company from PAS, but one with deep GM performance roots—decided the Syclone deserved a second act .
The recipe:
- Donor vehicle: 2019+ GMC Canyon (modern Sonoma successor)
- Engine: 3.6L LGZ V6 with centrifugal supercharger (viscous drive, no whine)
- Output: 455 horsepower, 425 lb-ft torque
- Transmission: 8-speed automatic
- Drivetrain: Available in AWD or rear-drive (heresy, but optional)
- Suspension: Lowered 2 inches front, 5 inches rear
- Brakes: 6-piston calipers, 13.6-inch slotted rotors front
- Wheels: 20-inch matte black twisted-spoke design
- Production: 100 units, each numbered on the dashboard and key fob .
The experience: Motor1 drove it in 2019. They praised the surefooted handling, the discreet exhaust note, and the “good taste” of the body mods. They criticized the +/- shift button on the gear selector—tiny, easy to miss—and the absence of paddle shifters. “It makes us wish that SVE had added paddle shifters, a modification that is probably much more complicated than it sounds” .
The cost: The conversion added $39,995 to the price of a donor Canyon. Total outlay: roughly $75,000–$85,000. SVE built all 100 units.
The verdict: It’s not a Syclone. It’s a supercharged Canyon with a legendary nameplate. But it’s the closest we’ll ever get to an official revival.
FAQ: GMC Syclone — What Collectors and Enthusiasts Still Ask
How many GMC Syclones were made?
2,998 total. 2,995 in 1991, plus three in 1992. One 1992 truck was crash-tested and destroyed; two survive in private hands .
Why was it called Syclone and not Cyclone?
Mercury owned the name “Cyclone.” GMC changed the C to an S to avoid trademark infringement .
Is the Syclone faster than a Ferrari?
0-60 and quarter-mile, yes. Top speed, no. The Ferrari 348 ts trapped 6 mph higher in the quarter and would pull away at triple-digit speeds .
What’s a Saudi Syclone worth?
Clean examples trade between $40,000 and $60,000, depending on documentation and originality. The lottery provenance adds value .
Were there any factory V8 Syclones?
No. The 4.3L V6 was the only engine offered. The Sonoma GT (1992) had a naturally aspirated 4.3L with 195 hp and cosmetic upgrades, but no turbo .
What killed the Syclone?
Price and purpose. At $26,000, it cost nearly twice as much as a base Sonoma. It couldn’t work like a truck, and the performance audience for pickups in 1991 was tiny. GMC never expected high volume, and they didn’t get it .
Can I buy a new Syclone today?
No. The 2019 SVE revival is sold out. GMC has no official plans to resurrect the nameplate, though the electric Sierra EV has sparked speculation about a silent, torque-heavy successor .
Is the Syclone a good investment?
Yes, if you buy right. Values have steadily climbed since 2010. Low-mileage examples now trade in the $45k–$55k range, roughly equivalent to a 1991 Ferrari 348 ts in similar condition. The irony is complete .
What’s the difference between a Syclone and a Typhoon?
Syclone = pickup, Typhoon = SUV. Same powertrain, same performance philosophy. The Typhoon is heavier, slower, and more practical .
Why did GMC lower it so much?
Handling. The rear leaf springs were designed for empty-bed cornering, not load capacity. Lowering the center of gravity made it stick. It also made it useless for off-road use, but that wasn’t the mission .
The Legacy: Why We Still Talk About a 34-Year-Old Truck
Here’s the thing about the Syclone: it shouldn’t have worked, and it almost didn’t.
It was too expensive. It was too compromised. It was built by a company that didn’t fully believe in it, using a transfer case from a cargo van and an engine from a Buick skunkworks project that Chevy laughed out of the room.
But it was also the fastest production truck on Earth for two years running. It embarrassed a Ferrari in front of 300,000 Car and Driver subscribers. It proved that American performance didn’t have to come from a Camaro or a Corvette—it could come from a division that sold work trucks to farmers.
“GMC revolutionized the industry by merging ‘sport’ and ‘truck’ in interesting ways. The GMCs from the 1980s are now highly in-demand performance cars.” — J.D. Power .
The Syclone didn’t save GMC. It didn’t change the way pickup trucks were engineered. It didn’t spawn a dynasty of turbocharged Sierras.
But it gave us something better: proof that the craziest idea in the room might actually be the best one.
The Ram SRT-10, the Ford Lightning, the TRX, the Raptor R—they all trace their lineage back to a black 1991 Sonoma with a borrowed turbo, a van’s transfer case, and a 4.3-liter V6 that somebody, somewhere, refused to stop believing in.
That’s why the Syclone isn’t forgotten.
That’s why you’re still reading about it.
References:
- GMC Syclone – Wikipedia
- GMC Syclone: The Story Behind The Classic High Performance Pick-Up Truck – SlashGear
- 2019 GMC Syclone First Drive: Run For Cover – Motor1.com
- 10 Things To Know About The GMC Syclone – J.D. Power
- Weekly Treasure: 1991 GMC Syclone – CarBuzz
- GMC Syclone: Low-key, high-performance bargain – Old Cars Weekly
- GMC Syclone: la pick-up deportiva que podía ser más rápida que un Ferrari – Motorpasión México
Did you ever see a Syclone in the wild, or are you still hunting for that Saudi-lottery unicorn? Drop your memories and dream builds in the comments.
