By: Mia Tepke
When most enthusiasts hear the word “prototype,” they think of concept cars hidden behind factory doors or experimental vehicles that never reach production. Very few ever become available to the public.
That is what makes the 2026 Shelby GT350 Convertible Prototype so unique.
Now, enthusiasts have a rare opportunity to own this exceptional 2026 Ford Mustang Shelby GT350 Prototype through a new sweepstakes hosted by TapKat. Participants can also take advantage of bonus entry opportunities outlined below.
Claim Your Sweepstakes Entries Here
At first glance, the car appears to be exactly what enthusiasts would expect from a modern Shelby: aggressive styling, a supercharged 5.0-liter V8 producing more than 810 horsepower, and performance figures that far exceed those of the original GT350 that debuted six decades ago. But the true significance of this car is not found in its horsepower rating.
It is found in its history.
According to Shelby American, this GT350 Convertible Prototype was built in Las Vegas during the development of the new 2026 GT350 program. Before the first production cars reached customers, vehicles like this were used to evaluate engineering changes, test performance components, and help finalize the specifications that would define the newest generation of Shelby’s iconic performance car.
That distinction separates this car from a standard production model.
Prototype vehicles occupy a unique place in automotive history because they exist at a critical stage in a vehicle’s development. They are the cars engineers, designers, and test drivers rely upon while transforming a concept into a finished product. Every decision regarding performance, drivability, and refinement passes through vehicles like these before production begins.
As a result, prototypes are often among the rarest vehicles a manufacturer ever produces.
Many remain in company collections. Others are dismantled after development is complete. Some are never seen outside factory walls. It is uncommon for a manufacturer to release a development vehicle to the public, particularly one connected to a major model launch.
The GT350 name itself adds another layer of significance.
Introduced in 1965, the original Shelby GT350 was created when Carroll Shelby transformed Ford’s Mustang into a competition-focused machine capable of succeeding in SCCA racing. The car quickly established a reputation for performance and helped create one of the most recognizable names in American automotive history. The GT350 went on to dominate SCCA B-Production competition and became a cornerstone of Shelby’s legacy.
The 2026 model celebrates the 60th anniversary of the original GT350 while introducing the nameplate to a new generation of enthusiasts. Shelby American’s latest version is available with up to 810 horsepower and, for the first time in decades, returns the GT350 in both fastback and convertible body styles. Production is limited to just 1,000 examples worldwide, making every 2026 GT350 an exclusive addition to the Shelby legacy. Convertible models, however, are expected to be among the rarest of them all.
Yet even among those limited-production cars, this prototype stands apart.
Every production GT350 that follows represents the finished product. This car represents the process. It is a tangible link between Shelby’s engineering team and the final vehicle that customers will ultimately receive. In many ways, it captures a moment in Shelby history that production cars cannot.
That historical significance is one reason the Shelby American Automobile Club Foundation selected this vehicle for its fundraising sweepstakes. The Foundation is dedicated to preserving the legacy of Carroll Shelby, the automobiles that bear his name, and the history surrounding them. Few modern vehicles embody that mission more clearly than a development prototype tied directly to the creation of a new GT350 program.
For collectors, rarity often drives interest. For historians, provenance matters even more.
This 2026 Shelby GT350 Convertible Prototype offers both. It is not simply one of the newest Shelby Mustangs ever built. It is one of the cars that helped shape what the newest Shelby Mustang would become.
Enthusiasts who would like the opportunity to own this one-of-a-kind prototype can enter here, with proceeds supporting the Foundation’s mission to preserve Shelby’s legacy.
Enter the Shelby GT350 Prototype Sweepstakes Here
The sweepstakes concludes on September 7, 2026, when one winner will take home a truly unique piece of modern Shelby history.
