GM Says Deleting The C8 Corvette's Fuel-Door Lock is an UpgradeAutoGuide.comMarcus LewinskyMon, September 14, 2026 at 10:37 PM UTCAdd us on GoogleGeneral Motors removed the Chevrolet Corvette's fuel-filler door lock during the 2026 model year, and the company now says the deletion brought engineering benefits beyond simple cost savings.gm says deleting the c8 corvette s fuel door lock is an upgradeThe mechanism, which locked and unlocked automatically with the vehicle, appeared on its face to be a cost-cutting casualty. But at a Q&A session during the 32nd National Corvette Museum Anniversary Celebration, where details of the MY2027 car were also discussed, Corvette Chief Engineer Josh Holder gave an audience member a fuller explanation. According to Holder, omitting the mechanism made the vehicle lighter, improved induction airflow, and reduced NVH. It also cut assembly time.Holder did not detail every change, but he pointed to the locking solenoid's limited value. "It made noise and locked, but it was easily defeatable," he said. He also cited complaints about the mechanism producing a popping noise, which accounts for part of the claimed NVH gain. "You're welcome that we got rid of it," he told the audience.AdvertisementAdvertisementThe fuel door itself remains and opens with a push, which allows anyone to access it. As with most GM models, including the Silverado 1500, the Corvette uses a capless fuel filler rather than a twist-off cap, and the fuel system already makes siphoning with a hose difficult. Opening the door alone does not provide easy access to fuel in the tank.gm says deleting the c8 corvette s fuel door lock is an upgrade2027 Chevrolet Corvette Grand Sport and Grand Sport X Debut 6.7L V82027 Chevrolet Corvette Grand Sport and Grand Sport X Debut 6.7L V8The LS6 pushes the V8 to a historic 409 cubic inches, producing 535 horsepower-or 721 with the hybrid Grand Sport X. Here it is. After teases and speculation and a spy shot or two, the 2027 Chevrolet Corvette Grand Sport and Grand Sport X have arrived. The sports car carries at its center the next-generation small-block V8, now displacing a fulsome 6.7 liters-or 409 cubic inches for the traditionalists.Kyle PatrickKyle PatrickThe weight claim is unlikely to produce a noticeable performance difference. The Corvette already delivers hypercar-adjacent numbers at a comparatively accessible price, and the deleted solenoid does not move that needle.AdvertisementAdvertisementThe more consequential MY2027 news sits elsewhere in the lineup. The Grand Sport returns, and a new 6.7-liter LS6 naturally aspirated V8 powers the entry Stingray and the Grand Sport. The Grand Sport X, which replaces the E-Ray, pairs that engine with an electric motor for a combined 721 horsepower.The 2027 Stingray starts at $71,000, while the flagship ZR1X opens at $227,500, both before destination. The ZR1X combines a twin-turbo V8 with an electric motor for a combined 1,250 horsepower. The fuel-door lock is expected to stay absent across the MY2027 range.Become an AutoGuide insider. Get the latest from the automotive world first by subscribing to our newsletterhere.