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C4 Corvette Special Model Overview

1993 Corvette C4 40th Anniversary ZR-1 parked on street

Simon Bertram·

1993 Corvette 40th Anniversary ZR-1

In 1993 just 448 ZR-1 Corvettes were produced and only 240 of them were 40th Anniversary Edition cars. The 40th Anniversary Package consists of a deep and glossy Ruby Red exterior finish over a matching Ruby Red interior with leather adjustable sport seats. A Corvette with both of these highly desirable packages is rare and special. At the heart of the ZR-1 is the 405-horsepower LT5 V8 engine mated to a 6-speed manual transmission.

Scott Kolecki·

1990 CERV III

While it was understood that the Corvette Indy Concept would never be fully realized as a production vehicle, it paved the way for the creation of the twin-turbo CERV III. The CERV III (Chevrolet Engineering Research Vehicle No. 3) was introduced in January, 1990 at the International Auto Show in Detroit, Michigan. Like the latter iteration of the Corvette Indy Concept car, the CERV III was fitted with a 5.7 Liter, 32-valve, dual-overhead cam LT5 engine that featured twin turbochargers. It had 650 hp and 655 lb/ft of torque and top speed of 225 mph.

Concepts & Prototypes

1991 Chevrolet Corvette ZR-1 Spyder

Chevrolet Corvette ZR-1 Spyder prototype, 1991, by ASC. An experimental styling prototype ordered by Don Runkle, Chevrolet’s chief engineer, to see how far the ZR-1 might be pushed in convertible form. The windshield was chopped in half and the seats were mounted directly to the floorpan. The black example in the National Corvette Museum was originally painted Sebring Silver with a Neutrino Yellow interior.

Concepts & Prototypes

1989 Corvette ZR1 ‘Snake Skinner’

In the late 80s, Chevy was developing what some dubbed a ‘Super Vette.’ But the 1989 debut of the Dodge Viper sent GM engineers on a new path to develop a ‘Viper-Killer.’ It started with a factory test mule and the experiment was to see how a ZR-1 would perform if given more power and less weight. It was so fast it was called "Snake Skinnner", for it's ability to beat the Viper and Cobra.

1996 Corvette Collector Edition

Chevrolet knows their clientele, and with the 1996 Corvette Collector's Edition LT4, the automaker put together a special package that would entice hard-core 'Vette fans with a unique tribute to the outgoing C4 model. The $1250 option brought unique Sebring Silver Metallic paint, 5-spoke wheels, and, of course, special badges and embroidery. It also received the upgraded LT4 powerplant available in the Grand Sport, and with 330 horsepower on tap.

Scott Kolecki·

Special Series Models

1988 Corvette 35th Anniversary Edition

While not exactly a "collector's edition" Corvette in its own right, it nonetheless has become a uniquely identifiable and collectible Corvette from the fourth-generation era. 1988 marked the 35th anniversary for Corvette, and so it was decided that Chevrolet should commemorate the milestone by introducing an anniversary-edition model. This anniversary car was the first of its kind in a decade, given that Chevrolet opted not to manufacture a Corvette in 1983.

1983 Corvette on display at the National Corvette Musuem

Special Series Models

1983 Corvette (The One & Only)

Within the National Corvette Museum's Skydome sits the only remaining 1983 Corvette; a car best characterized as a survivor, in every sense of the word. According to the Macmillan Dictionary, a survivor is, "someone or something that still exists after every other member of a group has died or been destroyed." This as it may, the 1983 Corvette lives up to this title.

1986 Corvette Indy Concept

The 1986 Corvette Indy Prototype was developed beyond clay modeling to the point of a fully-functioning, drivable car, though it was clearly understood that this car would never evolve beyond the prototype stage. Like the clay mock-up before it, development of the mid-engine Indy prototype began in 1985, pulling design cues from its predecessor.

1986 – 1989 Guldstrand Grand Sport 80 (GS80)

When Dick Guldstrand introduced the GS80 series in 1986, the car was targeted specifically at Pro-Solo and autocross enthusiasts. He knew all about the needs of these groups, as he was a longtime provider of performance upgrades for the C3 and a direct supporter of a small team of racers from the Western Council of Corvette Clubs. Up to this point, Dick had basically been a tuner. With the intro of the GS80 he was venturing into the realm of small-volume manufacturing.

Scott Kolecki·

Concepts & Prototypes

The 1992 Stingray III Concept

The 1992 Stingray III / California Stingray Concept was developed by John Schinella (and team) at GM's Advance Concept Center in Los Angeles. The 1992 concept is a world away from the C4. But the dominant motifs of a smooth rounded Corvette did come to production on the C5. This prototype looks distinctly upmarket, the rear shares a shocking similarity to the Jaguar XK8, without a flat surface in sight.

Scott Kolecki·

1985 Corvette Indy Concept

The first of these cars was the 1985 Corvette Indy Concept vehicle. It was developed as a “pushmobile,” meaning that it was a non-functioning, full-size clay mockup that was developed to test market interest in the concept. The car featured the same mid-engine configuration that Zora Arkus-Duntov had always envisioned for the Corvette program.

1996 Guldstrand Grand Sport 90 Nassau Roadster

To understand why the Guldstrand GS-90 coupe and convertible differ so much, keep in mind that during the course of the C4 development cycle, no ZR-1 convertibles were planned, so the base C4 convertible had to be used in building a GS-90 Nassau Roadster, as it was called. The coupe, however, had the advantage of using the ZR-1 platform right from the get-go.

1997 Callaway Corvette C7

The Callaway C7 was a completely new, purpose-built car designed to embody the company’s motto: “Powerfully Engineered Automobiles”, carrying on the visual tradition of design by Paul Deutschman and offered in a limited production series. The C7 was the first complete, bespoke Callaway Automobile. This sportscar was equipped with a carbon chassis, front mid engine/rear transaxle design, 650 horsepower SuperNatural engine.

1993 ZR-1 COrvette

Special Series Models

1990-1995 ZR-1 Corvette

The C4 ZR-1 Corvette, even some 30 years after its initial year of production, carries indisputable performance merit, the likes of which few can deny. In fact, the ZR-1 is often cited as the car which helped fend off threats, both foreign and domestic in origin, to the Corvette's elite performance car status. However, after only 6,939 ZR-1 Corvettes were built, and 6 years of production had passed, the program was terminated, falling victim to decisions regarding pricing.

1991 Callaway Corvette Speedster LM

The offspring of collaboration between Corvette performance guru Reeves Callaway and designer Paul Deutschman, the Super Speedster LM is an astonishing step up on the original Speedster, taking full advantage of the ZR1’s Lotus-engineered, all-aluminum DOHC engine and 6-speed manual transmission. One of only three twin turbocharged and intercooled LT5 engines built by Callaway, it delivers a pavement-shredding 766 HP.

Concepts & Prototypes

1990 Corvette ZR1 Active Suspension

This vehicle pioneered the advantages of “Active Suspension” and had GTP Corvette race car technology. Built at the Bowling Green Plant, this vehicle was developed as a prototype for a limited edition run in the 1990 model year. Chevrolet ordered it to be built with a complex, high-tech active suspension that includes an Eaton hydraulic pump and Moog actuators. This car and the technology inside of it led to the Active Handling system GM released in 1996.

1984 PPG Indy Pace Car

Special Series Models

1984 Corvette PPG Indy Pace Car

The 1984 PPG Indy Pace Car Corvette was special from the very beginning- in several ways. Initially, it was created as a one-off concept car that would be designated as one of the official Pace Cars for the PPG Indy Car World Series of races. It was custom-built by PPG in cooperation with the Chevrolet Division of General Motors. The 205 HP 350 was replaced by a 450hp, 401 cubic-inch V-8.

Non GM Special Models

1990 Bertone Nivola Concept

The Nivola may be considered Bertone’s homage to the most fascinating American sports car: the Chevrolet Corvette. The sophisticated mechanical unit of the ZR-1 was interpreted by Bertone in a European key. Bertone designed a special chassis to make a sporty "boat" with a mid engine. This mechanical layout made it possible to exploit all the power of the engine when accelerating and warrant perfect roadholding on bends.

1993 Callaway CR1 Corvette

When Chevrolet changed gears to the LT1 engine, Callaway revealed their new SuperNatural line and the CR1 based on the ZR1’s LT5. Options for the CR1 included the radical Aerobody, German upholstery and special wheels, brakes and exhausts. The CR1 used a larger displacement to produce either 475 or 490 bhp.

Concepts & Prototypes

1989 Corvette ZR2 ‘Big Doggie’

How do you beat a slew of Fox-Body 5.0 Mustangs that seemingly dominated the roads in the late '80s? You take a 454 cu.-in. big-block engine and stuff into a C4 Corvette and call it "Big Doggie". An experimental vehicle used to determine how to convert from a small block to a big block. Its 454 big block V8 along with its orange paint make this high horsepower engineering study a one-of-a-kind standout in Corvette history. The car had as much HP as the '90 ZR-1 did and it was named "ZR-2" or "Big Doggie". Old dog, new tricks joke?

1985-1988 Chevrolet Corvette GTP Race Car

A Corvette in name only, the Corvette GTP (Grand Touring Prototype) was one of the fastest and most exotic race cars ever to wear a red Bowtie. Based on an English Lola T600 chassis and powered by an all-American turbocharged Chevy V6, the mid-engined racer was a rocketship. At full boost, the Corvette GTP's 3.4-liter (209ci) V6 pumped out more than 1,000 horsepower.

Scott Kolecki·

Concepts & Prototypes

1992 ZR-12 Corvette Falconer

The Corvette team decided to one-up the Viper with four extra cylinders, they decided on one of Ryan Falconer’s stunning, all aluminum, 600-cubic-inch, 683hp, 680 lb-ft V-12 racing engines. The biggest challenge was the fact that the all-aluminum V-12 engine was 8.8-inches longer than the production Corvette engine. So the front end of the ZR-1 would have to be stretched 8 inches. This test car was named Conan, after his raw, beastlike charisma.

1988 Corvette Challenge Car Series

1988 Corvette Challenge Car Series

The 1988 Corvette Challenge Series was created by John Powell of Powell Motorsports. Chevrolet built fifty-six identical Corvettes for the first year of the Corvette Challenge in 1988. Each was equipped exactly the same, with all standard equipment, the 245hp Cross-Fire fuel injection engine, Doug Nash 4+3 transmission, Z51 Handling Suspension package.

ZR- World Record Endurance Run Corvette on display at NCM

Special Series Models

1989 ZR-1 World Record Endurance Run Corvette

On March 1-2 1990 a unique group of people using a Chevrolet Corvette ZR-1, reset The 24-hour World Speed Record. That achievement proved unequivocally that the car is indeed...King of the Hill. "The 24" had stood for 50 years. Last set at Bonneville in 1940 by AP Jenkins driving the "Mormon Meteor Ill", a purpose-built. single-seat race car with an aircraft engine. The objectives: set the 24 as well as 5000 kilometer and the 5000 mile marks with a ZR-1 while using an L98-powered Corvette to set the six-hour record and other shorter distance marks.

1986 EX4607 (ZR-1 Prototype)

This is no ordinary C4 coupe, but a GM Engineering test mule with VIN plate EX4607 proudly displayed in the windscreen, built in 1986 to test all the new-for-1988 features. This actual car must have spent weeks pounding round the General Motors Proving Ground at Milford, Michigan with longer runs on the road, testing all the changes for a year which saw the C4 suspension, steering and brakes vastly improved.

Scott Kolecki·

Concepts & Prototypes

2001 Corvette “Tiger Shark” Concept

Chevrolet Corvette “Tiger Shark” Concept, 1997. A C5 Corvette powered by an alloy 742hp LS1 427ci supercharged V8. Other modifications included upgraded Brembo brakes, 18-inch Kinesis Motorsport K58 forged wheels and a hood dome to clear the supercharger. It was built by Detroit prototype shop Wheel-To-Wheel and sold for $112,200 in 2009 at the GM Heritage car auction.

Concepts & Prototypes

1992 Corvette Sting Ray III

The Corvette Stingray Concept was developed as an internal design challenge to combine classic Corvette cues with surprisingly high-tech features, modern materials, and a striking new appearance. The car is well-appointed with a clamshell hood, scissor-style doors, ergonomic seats, rear-view camera with night vision enhancement, and a high performance hybrid drive. Interactive touch controls allow the driver to customize the power and efficiency of his or her ride.

1995 Corvette GT1 C4 ZR1

This car was created by Doug Rippie. His claim to fame was the Corvette Challenge Series. Rippie loved racing Corvettes in the US, but, his life-long dream was to take on the world-class marques at Le Mans. So, when Chevy introduced the C4 ZR1 the opportunity was opened up. Via his collaboration with MerCruiser and Lotus Engineering, all with Chevy’s blessing, the "Black Widow" program created special street and race versions of the LT5 engine. This engine made 525hp.

Scott Kolecki·

1988 Callaway Corvette “Sledgehammer”

This Sledgehammer reached 254.76 mph at the Transportation Research Center (TRC) in Ohio and became the world’s fastest street-legal car for some time. It was built up by Reeves Callaway in Connecticut as an example of what was possible with the new ZR1 and and turbocharging its LT5 engine. The result was a 898 bhp coupe that still retained luxuries such as air conditioning and a radio. It got this power by using a NASCAR-spec block with Mahle pistons and a massive turbo.

1994 Guldstrand Grand Sport 90 (GS90)

As the story goes, when the Corvette ZR-1 came out in 1990, Dick Guldstrand saw an opportunity to create his vision of the perfect Grand Sport ride, instead of his name just getting slapped onto another Chevrolet product. He asked GM for fifteen ZR-1’s and some money. He got one car and permission to do whatever he wanted to do with it. And that’s exactly what he did. Called the "GS90", Dick's car would prove to be the most elaborate and expensive specialty Corvette ever built.

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