GM EcoJet: Jay Leno’s Turbine-Powered Supercar

Turbine Thrill - The world of automotive innovation is filled with bold experiments, and some of the most exciting vehicles ever built come from passionate individuals with a deep love for engineering and performance. One such creation is the GM EcoJet, a concept supercar that emerged not from a traditional manufacturer alone, but from the dream of one of the world’s most famous car collectors—Jay Leno. This biodiesel-powered marvel, introduced in 2006, is a testament to creativity, collaboration, and cutting-edge technology.

Jay’s sleek EcoJet turbine supercar draws inspiration from the 2002 Cadillac Cien show car and GM’s 1950s Firebird jet cars by Harley Earl. (Picture from: http://www.agentauto.com/)

Jay Leno, widely known for his career as a talk show host, is equally famous for his extensive car collection. His garage, dubbed the "Big Dog Garage," houses an extraordinary assortment of vehicles, from classic antiques to high-performance modern supercars. But being a collector wasn’t enough for Leno—he wanted a car that reflected his vision, his passion for technology, and his commitment to sustainability. That vision took shape through a partnership with General Motors, specifically with Ed Welburn, GM’s Vice President of Global Design. Together, they crafted the GM EcoJet, a supercar that blended jet-powered engineering with the strength and durability of a Cadillac.

Front view of Jay Leno's Turbine-Powered EcoJet Concept. (Picture from: Motortrend)

The idea was born from a discussion between Leno, Steve Anderson, and Frank Saucedo from GM’s Advanced Design Studios. Once Ed Welburn refined and approved the sketches, the real work began. GM designers collaborated closely with Leno’s Big Dog team, working tirelessly over two weeks to bring the concept to life. The result was a car that drew inspiration from fighter jets and Formula 1 race cars, with design elements reminiscent of the Cadillac CIEN concept. While the aesthetics were crafted by GM, the mechanical engineering was entrusted to Bernard Juchli, the lead mechanic of Leno’s collection.

Electronics International developed the aircraft-inspired glass cockpit display, while Microsoft and Azentek integrated navigation and audio systems that allow Jay to access the internet and manage emails from the front seat—when parked, of course. (Picture from: PopularMechanics)

At the heart of the EcoJet is a highly sophisticated Honeywell LT-101 turbine engine, the same type used in Bell 222 helicopters and U.S. Coast Guard Dolphin helicopters. This unique powerplant produces an astonishing 650 horsepower and 583 lb-ft of torque, channeling its power through a four-speed automatic transaxle sourced from a C5 Corvette. Theoretically, the car could reach a blistering 394 km/h (245 mph), making it a true high-performance machine.

One of the most intriguing aspects of the EcoJet is its dual-fuel system. It features two separate fuel tanks—one for biodiesel and another for JP-4 jet fuel. The JP-4 is used exclusively for starting the turbine engine, after which the system transitions to biodiesel. However, the engine is not limited to biodiesel; it can operate on nearly any combustible liquid, demonstrating remarkable flexibility and efficiency.

Rear right side view of Jay Leno's Turbine-Powered EcoJet Concept. (Picture from: Motortrend)

Beyond its powertrain, the EcoJet showcases an advanced construction approach. The body is made from carbon fiber reinforced with Kevlar, while the engine is mounted within a modified Corvette Z06 hydroformed aluminum frame. Structural components are crafted from lightweight aluminum and magnesium, ensuring a balance of strength and agility. Many parts were sourced from GM’s performance lineup, including Brembo carbon-fiber brakes from the Corvette ZR1 and suspension arms from the Corvette Z06 C6.

True to its environmentally friendly ethos, the EcoJet’s interior avoids animal-sourced materials, opting instead for sustainable alternatives like Alcantara, a synthetic suede-like fabric that can be recycled. Inside, the car is controlled by an advanced onboard computer system developed by Microsoft and Azentek. This system not only manages the intricate turbine engine but also integrates entertainment, digital gauges, and even voice-activated controls.

The GM EcoJet is a unique fusion of extreme performance, futuristic design, and sustainable technology. Though it never entered production, it showcases how innovation flourishes when passion meets expertise. For Jay Leno and his team, the EcoJet wasn’t just a showpiece—it was a glimpse into the future of high-performance, eco-conscious driving. However, it's not the only biodiesel-powered supercar; another notable example is the UK’s Trident Iceni. *** [EKA [15122013] | FROM VARIOUS SOURCES | POPULAR MACHANICS | AUTOBLOG | MOTORTREND ]

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Valkyrie: Redefining the Art of Low-Riding

Low Ride - The world of custom motorcycles is a fascinating blend of artistry, engineering, and passion, where creators push the boundaries of design to produce something truly unique. These machines often become an extension of their creators, reflecting their ingenuity and dedication. One standout example of this artistry is the Valkyrie, a striking creation by Kenny Yeoh of Kenstomoto, a bespoke motorcycle workshop in Malaysia. This one-of-a-kind masterpiece was designed for the Invitational Bike Build-off at the prestigious Art of Speed show in Serdang, showcasing not only the technical expertise but also the visionary creativity of its builder.

The Kenstomoto Valkyrie’s right-side shot showcases the Arlen Ness front brake and its unique cable-operated hub-centre steering. (Picture from: IOL.co.za)

Unlike the Honda cruiser of the same name, the Valkyrie by Kenstomoto is a completely custom machine that embodies the essence of innovation. Built around a 650cc Kawasaki ER-6 parallel twin engine, it’s a bike that defies convention at every turn. From its low-slung profile to its meticulously crafted components, this motorcycle reimagines what a custom bike can be. Remarkably, the engine remains one of the few standard elements of the bike, though even it is given a radical twist with an entirely custom exhaust system. This unique setup features short, large-diameter header pipes positioned just ahead of the rider’s left foot, emphasizing the bike's bold and audacious design.

The Kenstomoto Valkyrie’s left-side shot showcases unique setup features short, large-diameter header pipes positioned just ahead of the rider’s left foot, emphasizing the bike's bold and audacious design. (Picture from: Paultan.org)

The frame of the Valkyrie is a marvel of engineering. Measuring an impressive 2200mm between the axles, the tubular-steel construction not only defines the bike's elongated silhouette but also contributes to its groundbreaking performance characteristics. The rider sits a mere 500mm off the ground, with only 70mm of clearance between the frame and the road. This design choice emphasizes the bike's low center of gravity while giving it an aggressive, ground-hugging stance that is both functional and visually striking.

The Kenstomoto Valkyrie, designed and built by Kenny Yeoh, highlights just how impressively low this custom masterpiece truly is. (Picture from: IOL.co.za)

At the rear, the Valkyrie features a single-sided hardtail setup mated to a Ducati 916 hub. This hub supports a massive 17-inch eight-stud steel wheel fitted with an equally imposing 240/45 tire. The width and structure of this gumball-like rear tire not only provide stability but also enhance the bike's overall aesthetic, giving it a commanding presence that demands attention. Every detail of the rear assembly reflects Yeoh’s dedication to precision and style, with each element meticulously selected to balance form and function.

 

The front end of the bike is no less extraordinary. A single-sided swingarm, fabricated from elegantly curved S-shaped tubular steel, houses a 21-inch hub center-steered wheel. This wheel, machined from a single block of solid aluminum, wears rugged 90/90 tires designed to tackle rough terrain. The steering mechanism is operated by dual push-pull cables, a simpler solution than the typical rose-jointed linkages, though Yeoh admits there’s room for refinement. Future plans include a redesign of the frame to incorporate hydraulic steering, aiming for enhanced precision and responsiveness.

The Kenstomoto Valkyrie’s custom spaceframe is crafted almost entirely from straight steel tube sections, except for its sleek, curved front swingarm. (Picture from: IOL.co.za)

Braking on the Valkyrie is equally impressive, featuring a combination of top-tier components. The front brake employs a Brembo radial-mount caliper from a BMW S1000 RR, clamping onto a 380mm Arlen disc, while the rear relies on the standard 220mm Brembo setup from the Ducati hub. These choices ensure that the bike’s stopping power matches its bold performance capabilities. Additional elements, such as the Japanese aftermarket Daytona switchgear and instrumentation, seamlessly integrate modern functionality into this extraordinary machine.

The Kenstomoto Valkyrie’s offset final-drive chain was needed to clear the huge 240/45 rear gumball. (Picture from: IOL.co.za)

Despite its imposing appearance, the Valkyrie is surprisingly light, tipping the scales at just 200kg in running condition. This is a testament to the thoughtful engineering and innovative construction techniques employed in its design. The spaceframe structure was carefully planned to maximize strength while minimizing weight, and the body panels, produced using advanced 3D printing technology, are another stroke of genius. These panels are ribbed for structural integrity but remain paper-thin in less critical areas, reducing weight without compromising durability.

The Kenstomoto Valkyrie features a 240/45 R17 rear tire mounted on a nine-inch-wide rear wheel. (Picture from: IOL.co.za)

The Valkyrie is more than a motorcycle; it is a testament to Kenny Yeoh’s vision and skill. By combining cutting-edge technology with traditional craftsmanship, he has created a machine that not only turns heads but also redefines what a custom motorcycle can achieve. For enthusiasts and casual admirers alike, the Valkyrie represents the boundless potential of human creativity, proving that the art of motorcycle building is alive and thriving in the hands of innovators like Yeoh.

Through this incredible creation, Kenstomoto has solidified its reputation as a leader in the world of bespoke motorcycles. The Valkyrie is not just a bike; it is a story, a dream brought to life, and a celebration of engineering brilliance. As Yeoh looks ahead to further refinements and future projects, one thing is certain: his passion for pushing the boundaries of design will continue to inspire and amaze, leaving an indelible mark on the world of custom motorcycles.

Kept spur your adrenaline on the power of two-wheeled monster and stay alive with the true safety riding. May God will forgive Your sins and so does the cops...... *** [EKA | FROM VARIOUS SOURCES | KENTSOMOTO ON FACEBOOK | IOL.CO.ZA | PAULTAN ]

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Aston Martin DB4 GT Bertone Jet: Rare Italian-Designed Icon

Iconic Craft  - In the golden age of automotive design, the 1960s delivered more than just powerful machines—it was an era where artistry met engineering. With European coachbuilders at the peak of their creativity, some of the most breathtaking cars ever made were born out of collaboration between manufacturers and Italy’s finest design houses. Among the most captivating results of this period is a singular creation that marries British performance with Italian flair: the Aston Martin DB4 GT Bertone Jet.

The Aston Martin DB4 GT Bertone Jet was a reinterpretation of the Gran Turismo concept, a rolling sculpture penned by a young designer who would soon become a legend: Giorgetto Giugiaro. (Picture from: Bonham)

This remarkable machine came to life through a unique confluence of vision, talent, and timing. While Aston Martin had long relied on the elegant touches of Carrozzeria Touring of Milan for its DB series, there were moments when the marque allowed for more personalized expressions. In rare instances, well-heeled clients could purchase a bare chassis and commission bespoke bodywork. This freedom gave rise to creations that stand today as irreplaceable automotive artifacts.

Toyota Celica Generations: From Street Icon to WRC Champion

Celica Chronicle - If you’ve ever caught yourself daydreaming about the golden era of Japanese sports cars, chances are the Toyota Celica raced through your mind like a turbocharged ballerina. Long before TikTok trends and electric scooters took over the streets, owning a Celica meant you had style, speed, and maybe even a poster of Carlos Sainz proudly pinned in your garage. Buckle up—mullets optional—as we cruise through the legacy of one of Toyota’s most iconic, high-revving machines: the Celica. Born from the visionary 1969 Toyota EX-1 concept, it evolved into a fierce rally contender that captured the hearts of automotive enthusiasts around the globe.

The first-generation Toyota Celica, bearing the A20 body code, made its debut at the 1970 Tokyo Motor Show. (Picture from: JapaneseNostalgicCar)

Gebhardt Motorsport: Racing Innovation Redefined

EID MUBARAK

Before we begin, the team of writers would like to inform you, Trussty's loyal readers, that in the spirit of Eid ul-Fitr, we extend our warmest wishes of 'Happy Eid ul-Fitr 1446 H. to all our Muslim brothers and sisters around the world.'

It's been a great pleasure being with you on this journey.

Thank you.

Racing Revolution - Racing cars have always been a fascinating topic for enthusiasts and casual fans alike. The sleek designs, roaring engines, and incredible speeds captivate audiences worldwide. But sometimes, a vehicle’s story is just as interesting as its performance on the track. One such story is that of the Gebhardt JC83, a car that broke norms and pushed boundaries in the world of motorsport during the 1980s. With its unique design and fascinating origins, this car stands as a testament to ingenuity and ambition. Let’s dive into the history of this remarkable creation and the people behind it.

The Gebhardt JC83, a racer that broke norms and pushed boundaries in the world of motorsport during the 1980s. (Picture from: RSF Motorsport on X)

Vauxhall VX220 Reinvented: The V8-Powered Caral VX S Sport

EID MUBARAK

Before we begin, the team of writers would like to inform you, Trussty's loyal readers, that in the spirit of Eid ul-Fitr, we extend our warmest wishes of 'Happy Eid ul-Fitr 1446 H. to all our Muslim brothers and sisters around the world.'

It's been a great pleasure being with you on this journey.

Thank you.

Little Monster - The allure of high-performance sports cars often transcends borders, turning heads and capturing imaginations worldwide. Among the pantheon of these automotive marvels, one car stands out for its rarity, engineering brilliance, and the emotional response it evokes from enthusiasts: the Caral V8XS. Born from a foundation as unconventional as the GM Opel Speedster/Vauxhall VX220, this bespoke creation is a testament to the art of reinvention and innovation.

The Caral V8XS, born from a foundation as unconventional as the GM Opel Speedster/Vauxhall VX220. (Picture from: AllCarIndex)