The 1963 Chevrolet Corvette Grand Sport has just rewritten the record books. One of only five Grand Sport race cars ever built has sold for an astonishing $18.7 million at auction, making it the most expensive Chevrolet Corvette ever sold publicly.

Offered by RM Sotheby’s, the ultra-rare C2 Corvette was widely expected to challenge the existing auction record for a Corvette. Few, however, could have predicted just how far bidding would go. The final price of $18.7 million eclipsed the previous Corvette auction record by nearly $15 million, underscoring the extraordinary appeal of Chevrolet’s legendary factory-built racing machine.

For collectors, this was never simply another classic Corvette. Chassis No. 003 represents one of the most important chapters in American motorsport history—and perhaps the ultimate expression of Zora Arkus-Duntov’s vision for the Corvette.

The Most Expensive Corvette Ever Sold at Auction

Before the 1963 Corvette Grand Sport crossed the auction block, the record for the most expensive Corvette sold at public auction belonged to a 1967 Corvette L88 Coupe.

That car achieved $3.85 million in 2014, establishing a benchmark that remained untouched for more than a decade. Several Corvettes subsequently crossed the $3 million threshold, but none came close to challenging the L88’s record.

The recent auction completely changed the picture.

The $18.7 million sale price is almost five times the previous Corvette auction record. It also places this Grand Sport among the most valuable American automobiles ever sold at auction.

The current top three Corvette auction results include:

• 1963 Chevrolet Corvette Grand Sport – $18.7 million
• 2025 Chevrolet Corvette ZR1 VIN 001 – $3.7 million
• 2023 Chevrolet Corvette Z06 70th Anniversary Edition – $3.6 million

The scale of the new record is particularly remarkable because the Grand Sport is more than six decades old. Its value comes not from modern performance or technology, but from rarity, competition history, provenance and its place in Corvette history.

Only Five Corvette Grand Sports Were Ever Built

The extraordinary value of this Corvette begins with one simple fact: Chevrolet built only five original Grand Sport cars.

The Grand Sport program was conceived in 1962 by legendary Corvette engineer Zora Arkus-Duntov. His objective was straightforward but ambitious—to create a lightweight, purpose-built Corvette capable of taking on Ford-powered competition such as the Shelby Cobra.

At the time, General Motors had decided to withdraw from official factory-supported racing programs. That decision, however, did little to stop Duntov and his team from pursuing their own vision.

The Grand Sport was developed largely in secret, with engineers working on the project outside their regular responsibilities.

Duntov originally intended to build 125 examples, which would have been enough to satisfy homologation requirements for international Grand Touring competition.

General Motors management eventually discovered the program and ordered it to be stopped.

Only five cars had been completed.

Those five Corvettes subsequently became some of the most coveted American racing cars ever produced.

Chassis No. 003 Has a Serious Racing Pedigree

The Corvette that achieved the $18.7 million auction result carries chassis number 003, making it one of just five original Grand Sports.

Its competition history adds another layer of significance.

The car was raced by Dick Doane during the 1963 season, winning three SCCA races. It later competed at the legendary 12 Hours of Sebring, finishing second in class in 1964 and third in class in 1965.

Its cockpit also saw some of the biggest names in American racing.

Drivers associated with the car include A.J. Foyt, Jim Hall, Augie Pabst and Dick Thompson.

That combination of rarity and documented competition history is exactly what serious collectors look for. Unlike many expensive classic cars, this Corvette is not valuable merely because it is old or attractive. It has genuine motorsport credentials and a direct connection to one of the most important periods in American racing.

A Corvette Designed to Fight the Shelby Cobra

The original Grand Sport was radically different from an ordinary Corvette.

Rather than simply adding more horsepower to the production C2, Chevrolet engineers focused on reducing weight and improving the car’s ability to compete on a race track.

The Grand Sport program was developed around a lightweight construction philosophy and a dedicated racing specification. The goal was to create a Corvette that could challenge lighter and highly competitive sports cars of the era.

The Shelby Cobra was one of the primary targets.

That rivalry helped create one of the most fascinating chapters in the history of American performance cars. The Grand Sport ultimately never received the opportunity to fulfill its original homologation program on the scale Duntov envisioned, but the five cars that survived became automotive legends.

More Than 600 Horsepower From a Period-Spec V8

Under the hood of chassis No. 003 is an all-aluminum 6.2-liter V8 built to period specifications.

The engine is equipped with four original Weber 58 DCOE carburetors, an arrangement that immediately identifies this Corvette as a serious competition machine rather than a conventional road-going C2.

The engine is estimated to produce more than 600 horsepower and approximately 530 lb-ft (813 Nm) of torque.

Those numbers are remarkable even by modern standards. In a lightweight race car developed in the early 1960s, that level of power transforms the Grand Sport into something far more intimidating than the average classic Corvette.

The combination of low weight, substantial power and racing-focused engineering was precisely what Duntov and his team intended.

Restored to Its 1964 Sebring Appearance

The Grand Sport’s history continued after its racing career.

Collector Larry Bowman acquired the car in 2004 and subsequently commissioned a restoration designed to return it to the appearance it carried when it competed in the 1964 24 Hours of Sebring.

That approach is particularly important for a historically significant competition car. Rather than simply restoring it to an attractive showroom condition, the objective was to preserve and recreate its racing identity.

The result is a Corvette that represents a specific moment in its competition history while retaining the authenticity that collectors demand from a car of this importance.

The Second Grand Sport to Appear at Public Auction

The $18.7 million sale is even more remarkable when considering how rarely an original Grand Sport has been offered publicly.

This was only the second Grand Sport to appear at a public auction.

The first was offered in 2009. Although bidding reached $4.9 million, the car failed to meet its reserve and did not sell.

It was later sold privately for an undisclosed amount believed to have exceeded $4 million.

Another original Grand Sport changed hands privately in 2002 for approximately $4.2 million.

Those earlier transactions provide an interesting perspective on the explosive appreciation of the Grand Sport. A car that was already considered exceptionally valuable more than two decades ago has now reached a completely different level of collectability.

Why Did This Corvette Sell for $18.7 Million?

The answer is a combination of factors rather than a single feature.

First, there is extreme rarity. Only five original Chevrolet Corvette Grand Sports were produced.

Second, there is provenance. Chassis No. 003 has a documented racing history that includes SCCA victories and multiple appearances at the 12 Hours of Sebring.

Third, the car is directly connected to Zora Arkus-Duntov, one of the most influential figures in Corvette history.

Fourth, it represents a factory racing program that General Motors never allowed to reach its intended production target.

And finally, there is the Grand Sport’s place in American motorsport history. It represents a rare moment when Chevrolet engineers attempted to transform the Corvette into a lightweight international racing weapon.

For collectors, that combination is extraordinarily difficult to replicate.

The Grand Sport Is Now One of America’s Most Valuable Cars

At $18.7 million, the 1963 Corvette Grand Sport is not only the most expensive Corvette ever sold at auction. It is also the third most expensive American car ever sold publicly.

Only two American automobiles have achieved higher auction prices.

A 1964 Shelby Cobra Daytona Coupe recently sold at Pebble Beach for an extraordinary $42.9 million, setting the American-car auction record.

Second place belongs to a 1935 Duesenberg SSJ, which sold for $22 million.

The Corvette Grand Sport therefore occupies an extraordinary position alongside two of the most valuable and historically significant American automobiles ever produced.

A Record That Could Stand for Years

The $18.7 million sale dramatically changes the landscape for collectible Corvettes.

The previous record of $3.85 million had stood since 2014. The new benchmark is so far beyond that figure that another Corvette would need to be something truly extraordinary to challenge it.

That does not mean the market has reached its ceiling. The five original Grand Sports remain among the most desirable American racing cars, and the history of the remaining examples could eventually produce another headline-making transaction.

For now, however, chassis No. 003 sits comfortably at the top.

The 1963 Chevrolet Corvette Grand Sport was born from a secret racing project that General Motors ultimately shut down. Only five examples escaped into the world.

More than 60 years later, one of those five has become an $18.7 million automotive icon.

And in the process, the Corvette has entered an entirely new level of collector-car value.

1963 Chevrolet Corvette Grand Sport: Key Facts

Model: Chevrolet Corvette Grand Sport
Year: 1963
Chassis: No. 003
Production: 5 original examples
Engine: 6.2-liter all-aluminum V8
Induction: Four Weber 58 DCOE carburetors
Estimated output: More than 600 hp
Estimated torque: 530 lb-ft (813 Nm)
Auction house: RM Sotheby’s
Sale price: $18.7 million
Previous Corvette auction record: $3.85 million
Previous record holder: 1967 Chevrolet Corvette L88 Coupe

Source: RM Sotheby’s