Home » This World-Beating Sports Car Failed So Hard You’ve Probably Never Heard Of It

This World-Beating Sports Car Failed So Hard You’ve Probably Never Heard Of It

Guanci Sjj Buick Ts3
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For many enthusiasts, the Chevrolet Corvette has been America’s quintessential sports car since its birth in 1953. One Chicago man apparently didn’t agree. John Guanci wanted an American sports car that slayed the European competition, but all American sports cars fell short. So, he set out to build his own sports car, a car that would outrun the Europeans, cement itself as America’s exotic, and be as reliable as a stone axe. Then whole thing then fell apart, but I actually have good news for one lucky person.

This 1982 Guanci SJJ-1 is just one of three of these cars in existence. It was the third and final prototype for what was supposed to be a Corvette killer. But as you’ll read below, that never happened. But you can own the car you see on your screen today. It’s for sale with all of 208 miles on its odometer. In other words, it’s a brand-new car from a company that died over 40 years ago.

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It’s a shame Guanci Automobiles Inc. never got its chance to shine because this car wasn’t a shed build, but a legitimate effort to make a kind of performance car even General Motors wasn’t doing at the time.

Woodstock’s Only Automaker?

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According to an article by Motor Trend in January 1982, Chicago-area businessman John Guanci used to be a proponent of Detroit’s soft and powerful land yachts, cars that looked majestic so long as they weren’t challenged with anything more than a slight bend. Then, the magazine said, he slipped into a friend’s Pontiac Firebird Trans Am. It was love at first sight and Guanci got the need for speed. First, Guanci got a T/A, but as his finances improved, so did his taste in cars. Later, Guanci would pick up a Lotus Elite and loved how it drove, but didn’t like its penchant for trying to leave him stranded.

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Guanci developed a dream out of this. He wanted a car that looked and drove like a European exotic, but had the rock-hard dependability of an American car. So, he started looking around for what he could buy at home.

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By now, it was early 1977 and the American sports car landscape didn’t seem to support this idea. General Motors toyed around with introducing Wankel engines in its cars, and one of its propositions was a Corvette-type of vehicle with a rotary placed in a mid-rear configuration.

Unfortunately, General Motors found out that rotaries left a lot of unfulfilled promises and killed its project. It was still a year before the Vector W2 concept car and just a little over a decade before Gerald Wiegert even put a car into production.

Mercedes Streeter

Ultimately, Guanci decided there was nothing in America that fit his criteria and European cars were just too unreliable, so he decided to make his own American sports car to beat the European exotics. But, as Motor Trend wrote, the 41-year-old Guanci was an industrialist with a successful manufacturing and fabrication business. He was not a car designer or an engineer.

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But he did have some money and some pull, so he was able to get famed race car constructor Bob McKee in on the project. McKee then introduced Guanci to car designer Mike Williams and fiberglass specialist Steve Norcross. Soon after, Guanci Automobiles Inc. was founded in the small town of Woodstock, Illinois, today famous for being the home of movies like Groundhog Day. There doesn’t appear to be a trace of Guanci Automotive left today as a different building stands where Guanci Automotive once did:

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Google Maps – 2007

Each of the men would take on roles doing what they knew best. McKee engineered the vehicle’s underpinnings while Williams penned an Italian Gran Turismo-like design to be sent to Norcross, who did the work in creating fiberglass molds to turn those drawings into something real.

American Roots, European Aspirations

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Chicago Automobile Trade Association

Guanci directed the project to be as American as possible, and the team managed to fire off the first two prototypes in time for the 1979 Chicago Auto Show. As such, the SJJ-1 show cars used off-the-shelf components from General Motors, including the same 350 cubic inch L82 as used by the Corvette at the time. This V8 was mounted transversely in the middle of the vehicle and made 220 HP. Unfortunately, Guanci ran into trouble sourcing more of these engines and found out that he’d have to certify the engine for California. As a result, Guanci changed the engine from the V8 to the 3.8-liter turbocharged V6 from a Buick Riviera. This engine made just 185 HP, but it weighed 150 pounds lighter than the V8, bringing the SJJ-1 to about 3,050 pounds with a 45/55 weight distribution. Guanci even robbed the donor Buick of its THM 325 three-speed automatic but added a custom limited-slip differential.

McKee gave the Guanci SJJ-1 a 102-inch wheelbase with a tubular steel monocoque, a central stainless steel backbone structure, and a full roll cage. Dick Kleber further refined McKee’s work as the car nudged closer to production.

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Guanci Automobiles

There have been rumors around the Internet about this car being based on a Pontiac Fiero or perhaps a DeTomaso Pantera. Those rumors are incorrect. This car was built largely from the ground up, only borrowing some components from GM. There also seems to be some confusion about the name, as I’ve seen it reported as “SSJ-1” for “Super Sports John Model 1.” However, all of the evidence I’ve seen, from the Motor Trend piece to an advertisement I found, only called the car the SJJ-1.

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Even the suspension was as American as possible. Motor Trend notes that the SJJ-1’s suspension was fully independent and featured custom springs wrapped around Monroe adjustable shocks. The ride was carried with unequal-length, fully adjustable upper and lower A-arms using spherical rod ends with Teflon bushings. Motor Trend also notes that the vehicle had front uprights from the Corvette, but custom cast aluminum uprights in the rear plus a large 1-inch front sway bar. The magazine continued by saying that the SJJ-1 had brakes from the Corvette as well as 6,000 PSI braided stainless steel brake lines.

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Capping off the build was an interior featuring leather-wrapped Recaro thrones.

Motor Trend got to test the third and final SJJ-1 prototype around the towns that dot the border of Illinois and Wisconsin. As a resident of this area, I can confidently say there isn’t much in the way of curves or hills out here. Yet, Motor Trend apparently found enough twists to be impressed with the SJJ-1’s performance. Sure, the car took about 10.9 seconds to reach 60 mph, but apparently the car cornered level and was surprisingly comfortable for something of its caliber of handling performance. In the end, Motor Trend even said that this turbo V6 test car drove better than the previous V8. If the prototype was that good, the production car had to be even better.

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Unfortunately, things looked a little rough even in 1982 when the Motor Trend issue was published. John Guanci said he already invested $600,000 ($2,006,156 today) in the cars, tooling, and facilities and the project was still a year behind schedule. But he figured things would be fine. Guanci wanted to make sure the car was right, even if it took too long and cost too much money. He wanted this to be a hit out of the park. And at a price of $63,500 ($212,318 today), the car had to be a hit. That was $45,000 ($150,461 today) more expensive than a base-model Corvette!

Guanci expected to have the first customer car on the road in the spring of 1982 and with several more by the end of the year. He figured that once things ramped up, his Woodstock factory could produce around a dozen cars a year by hand.

One Of Just Three

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Sadly, Guanci was hit by two insurmountable problems. The first was that people weren’t exactly lining up to buy absurdly expensive cars from a startup company in the early 1980s. Keep in mind that Guanci had these cars developed during a time of economic uncertainty and double-digit interest rates. Then, one of Guanci’s investors suddenly passed away. Ultimately, Guanci Automotive fizzled out after producing just the three prototypes. Allegedly, the one SJJ-1 that sold went for $49,000 ($163,836 today), so it didn’t even go for what Guanci wanted to sell them for.

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Reportedly, the Guanci family held on to two of the prototypes while the third ended up with the company’s sole customer. The car we see here today, the third prototype, was one of the ones in the Guanci family collection. It’s said that in the 1990s, the family upgraded this car. The 3.8-liter turbo V6 was tossed out for the L47 Aurora V8. Its 250 HP and 260 lb-ft of torque should mean a faster car than even John imagined back in the late 1970s.

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Somehow, despite all of this, Guanci never really put many miles on this car. The odometer reads just 208 miles and the vehicle’s immaculate condition seems to support that. According to the listing, the vehicle was recently restored to running condition by the Genius Garage engineering education charity program. Thus, if you purchase this car for $48,000 and drive it home from Bowling Green, Ohio, the money you spend will be going toward teaching the youth about automotive engineering.

That sounds like a pretty sweet deal, but perhaps nearly as cool would be owning just one of the three cars that were supposed to destroy the Europeans at their own game. Sadly, we’ll never know for sure if Guanci would have succeeded in his mission, but it sure looks like nothing else that came out of America back then.

(Images: Casey P on Facebook Marketplace, unless otherwise noted.)

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Chi_spotting
Chi_spotting
16 days ago

Shame, it’s a very beautiful car that would’ve slotted nicely along the DeLorean and Vector for iconic 80’s American sports cars

BeemerBob
BeemerBob
17 days ago

And he recently died. “John J. Guanci, Jr., 83, of Woodstock passed away Sunday, January 21, 2024 at JourneyCare in Barrington “. Interesting man. He was also a Green Beret who served in Panama and Laos before the Vietnam war.

James Colangelo
James Colangelo
17 days ago

I used to follow Casey Putsch on YouTube (there are videos of him getting this car running on there if you look him up) but I couldn’t handle his constant whining and rambling on and on, he’s a really bitter and angry dude. He’s extremely unlikable so I unsubscribed about 6 months ago.

It’s a neat car, though. I think it’s really pretty, with nice lines and good engineering. This would be fun to own and drive!

Camelman
Camelman
17 days ago

I call my 928 “GC”. Short for German Corvette. If I bought this thing, I might have to call it A928…

Beauty is in the eye of the beholder, and I am one that thinks this is a stunning car. Much like the 3-speed 928 models Porsche was putting out at the time, although the 928 has much more power.

Ecsta C3PO
Ecsta C3PO
17 days ago
Reply to  Camelman

I like it as long as the pop ups downs are down up…uh closed

Captain Muppet
Captain Muppet
17 days ago

“ …cars that were supposed to destroy the Europeans at their own game.”

Should be easy enough, just benchmark the European cars and spend more money on quality control.

“ three-speed automatic”

Oh America.

Manwich Sandwich
Manwich Sandwich
18 days ago

It’s a shame it failed… but I’m not surprised… especially if he went into this WITHOUT thinking he would have to put the car through California emissions testing

I think building a mid-engine coupe was a good idea for that time. But considering the price, going with anything less than a fuel injected V8 would be unacceptable.

Personally I would have gone with nothing less powerful than the Corvette V8, with some form of fuel injection system NOT from GM (maybe from Bosch). And for an automatic, maybe a GM TH425, TH325 or TH325-4L.

And for a manual transmission, a 5 speed manual of some sort.

A spec like that with the mid engine layout could make the cost far more justifiable.

But it would take a lot of capital to pull it off.

Anoos
Anoos
18 days ago

It looks very 928-ish to me.

I like that it’s different, but not awesome enough or weird enough.

1978fiatspyderfan
1978fiatspyderfan
18 days ago

First Groundhog Day was filmed in Punxatawney Pa. Second a car with European designs and American reliability in that age was an unreliable car. I like the design but that age was unable to create a good looking reliable car that met government regulations.

Yzguy
Yzguy
18 days ago

Groundhog Day was certainly set in Punxatawney, PA., but was definitely filmed in Woodstock, IL.

BenCars
BenCars
19 days ago

That doesn’t look too bad actually. Like a mid-engined Nissan Z Car.

Spikedlemon
Spikedlemon
19 days ago

Those are the plushest looking sport seats I’ve ever seen. They look like serious all-day comfort.

Lardo
Lardo
19 days ago
Reply to  Spikedlemon

perforated leather. love it. it looked like fabric to me at first.

Ecsta C3PO
Ecsta C3PO
17 days ago
Reply to  Lardo

Are you sure? The sides are leather but thr top sure looks like fabric

Lardo
Lardo
17 days ago
Reply to  Ecsta C3PO

looks perforated, but fuzzy. so I’m not sure?

Do You Have a Moment To Talk About Renaults?
Do You Have a Moment To Talk About Renaults?
19 days ago

This one for sale isn’t as pretty, with its smoother edges kinda ruining the vibe of the design, but the other two prototypes look pretty damn cool. It’s a pity that production never went ahead. In any case, even if it isn’t the best looking of the three, the asking price seems very enticing for such a rare car, and the off-the-shelf mechanical components might actually make it dependable – for a concept car, at least. Congratulations to the one lucky person taking this one home!

Last edited 19 days ago by Do You Have a Moment To Talk About Renaults?
Cheap Bastard
Cheap Bastard
19 days ago

“Guanci developed a dream out of this. He wanted a car that looked and drove like a European exotic, but had the rock-hard dependability of an American car. So, he started looking around for what he could buy at home.”

So why not just buy a Pantera?

Last edited 19 days ago by Cheap Bastard
Jerry Thomas
Jerry Thomas
19 days ago
Reply to  Cheap Bastard

I thought Pantera’s had a great ford v8 and ZF transaxle, but garbage everything else? Electrical troubles and poor assembly quality etc.. Elvis shot his for not working properly. Such beautiful cars though.

Cheap Bastard
Cheap Bastard
19 days ago
Reply to  Jerry Thomas

Even so I think it’d be a LOT easier and cheaper to Singerize a Pantera than to start a new company making para Panteras.

Lardo
Lardo
19 days ago
Reply to  Cheap Bastard

Except nobody was Singerizing anything thing then. And today? A Pantera’s cost + Singerizing would be $100k at least? more like $250k. So for the money it’s a one of almost a kind with a solid engine,

Cheap Bastard
Cheap Bastard
19 days ago
Reply to  Lardo

Call it what you want its essentially fancy customization of which there was plenty of going on in the 70s, 80s and 90s.

Lardo
Lardo
16 days ago
Reply to  Cheap Bastard

I think Singer’s are a work of art that nobody came close to in the past. But I might not know. Any contenders?

Cheap Bastard
Cheap Bastard
16 days ago
Reply to  Lardo

Maybe Porsche?

“When you’re a brand, like Porsche, that has long fed the passion of its fans, it comes as no surprise that there are customers who want to create a new car that reflects their personality to the finest of details. To address these desires, the Sonderwunsch programme was set up in the 1970s to bring such dreams to life. Translating literally from German as ‘special requests’, the name first appeared in 1978 with the founding of the Porsche ‘Sonderwunschabteilung’, which handled special modifications and conversions of series vehicles – even custom one-off Porsche models”

https://www.porsche.com/stories/innovation/creating-custom-porsche-cars-with-the-sonderwunsch-programme/

Loren
Loren
19 days ago

I’m not sure how we call this a failure. As was said toward Tesla over and over, “building cars is hard”, they got this far and I’d be very curious as to how good of a job they were able to do. Obviously they had a long long way to go if this was going to be a production car but it’s a good-looking unit from the pics. Frankly if I were closer I might load up my wallet just in case and go see.

Drive By Commenter
Drive By Commenter
19 days ago

Thought those were Aurora wheels. And the V8 to go along with it!

Someone deserves to take this time capsule home. And let it experience many miles of track days, hot laps and autocrosses.

Steve's House of Cars
Steve's House of Cars
19 days ago

I saw the wheels, then the dashboard with the Aurora gauges, and the Aurora shifter, and figured something had to have happened in the past ~20 years with that car as that surely wasn’t original to the early 80s!

LMCorvairFan
LMCorvairFan
19 days ago

Nice looking buggy. I’d never heard of it until your article. Thanks Mercedes!

Elrond Hubbard
Elrond Hubbard
19 days ago

My ex-wife grew up in Woodstock. Clearly, it’s where hope goes to die.

Mechjaz
Mechjaz
19 days ago
Reply to  Elrond Hubbard

I feel a little bad for how much I laughed at this.

But only a little.

Minivanlife
Minivanlife
20 days ago

At first look, thought it was a 300ZX with a body kit…

Eggsalad
Eggsalad
20 days ago

In the 80 years since WWII, there has been exactly one successful automotive startup corporation. Sadly, I’m not referring to the Mohs Seaplane Corporation.

Mike Harrell
Mike Harrell
19 days ago
Reply to  Eggsalad

That is indeed sad but I am glad to have my own small souvenir of Bruce Baldwin Mohs’ noble efforts:

https://live.staticflickr.com/7408/27192365776_0a2e96283e_c.jpg

Tallestdwarf
Tallestdwarf
20 days ago

That’s a pretty good-looking car, and the engine should be fairly reliable… even the price is good for a TRUE piece of automotive history.

But if you ding a fender, you’ll never find an other one.

Lardo
Lardo
19 days ago
Reply to  Tallestdwarf

It’s fiberglass so easier to repair than a metal fender.

Rapgomi
Rapgomi
20 days ago

I have nothing but admiration for John Guanci and the team he put together. This was a valiant attempt to build his dream. And considering the standards of the late 70s and early 80s, the car they put together is genuinely impressive.

Well done sir!

Nicholas Nolan
Nicholas Nolan
20 days ago

Bob Mckee, a man that sat at my kitchen table with my parents, was an important (well, you know…) car mans?! What the shitting hell?! All the years I covered the bedroom walls in that same house with exotic car posters and neither of them mentioned that “Bob that used to come over when you were little was involved in a failed shed-car manufacturer”?

A. Barth
A. Barth
20 days ago

If I had his last name, I would do my best to open a brewery: GuanciAle.

AssMatt
AssMatt
20 days ago
Reply to  A. Barth

fancy

Lardo
Lardo
19 days ago
Reply to  A. Barth

with a pasta restaurant component? love pork cheek/jowl. god dam it’s gotten expensive.

https://www.amazon.com/Licini-Guanciale-12-oz/dp/B091ZLQQ4X?source=ps-sl-shoppingads-lpcontext&ref_=fplfs&smid=A2IZKR4JCKQ60U&th=1

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