Turbine-Powered EcoJet Concept: A Collaboration Between Jay Leno and GM - AllCarIndex

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Turbine-Powered EcoJet Concept: A Collaboration Between Jay Leno and GM

Jul 22, 2025

In 2006, General Motors shocked the automotive world with the unveiling of the EcoJet - a mid-engine, turbine-powered supercar that captured the essence of power and sophistication. The genesis of the EcoJet began with a simple discussion between "Tonight Show" host Jay Leno and Bernard Juchli, the chief mechanic and caretaker of Leno's extensive car collection.

Leno, a renowned car enthusiast and collector, approached Ed Welburn, GM's vice president of Global Design, for design direction on a new project. A few sketches on a napkin later, and the wheels were set in motion for the EcoJet to become a reality.

The design of the EcoJet was a collaborative effort between Leno's team and GM's Advanced Design Studio in North Hollywood, California. Drawing inspiration from aeronautical and jet-age influences, the supercar exuded power, capability, and a hint of danger, all while incorporating Cadillac's sophisticated design vocabulary.

With design cues taken from jet aircraft and Formula One racecars, the EcoJet began to take shape as a truly unique and innovative vehicle. Powered by a 650-horsepower Honeywell LT-101 turbine engine that ran on bio-diesel fuel, the EcoJet was a true marvel of engineering.

The construction of the EcoJet involved a number of partners, including Alcoa for chassis and wheel engineering, Metalcrafters for body engineering and construction, and Honeywell as the engine supplier. The vehicle featured a modified Corvette Z06 hydroformed aluminum frame with advanced carbon fiber and Kevlar construction, showcasing the latest in automotive technology.

With a wheelbase of 110 inches and an overall length of 184 inches, the EcoJet was a standout on the road and on the track. Its 20-inch front wheels and 22-inch rear wheels, combined with its sleek and aerodynamic design, made it a force to be reckoned with.

The EcoJet was not just a concept car - it was a symbol of innovation and collaboration between two automotive powerhouses. With Leno's vision and GM's expertise, the EcoJet represented the pinnacle of automotive design and performance in 2006.

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