A Franco-Italian-American automotive group, known as Stellantis, is reportedly investing in hybrid vehicle technology, as revealed by a patent discovered by the American media outlet CarBuzz in mid-September 2026. The patent outlines a system designed to improve the coordination between traditional internal combustion engines and electric motors in hybrid vehicles. This system aims to reduce the jarring "micro-shocks" that can occur during acceleration by using a Kalman filter, a mathematical tool that predicts system behavior despite uncertainty, and a prediction horizon that anticipates driver inputs. This approach would synchronize the power delivery from both the engine and motor, especially in hybrids that use continuously variable transmissions (eCVT) without a traditional clutch. While the patent filing signals Stellantis’ interest in hybrid innovation, it does not guarantee that the technology will be used in a future vehicle. The company has filed several other patents related to hybrid systems, including an electric turbo system and supercapacitors inspired by Lamborghini technology. However, Stellantis currently offers few hybrid models in the United States, having phased out its 4xe hybrid lineup and focusing instead on fully electric vehicles. In Europe, the company is preparing a range of electric and hybrid models, including a fully electric version of the Jeep Wrangler, but its long-term strategy remains unclear. Stellantis is only now beginning to adopt full hybrid technology, which has been used by competitors like Renault and Toyota for years. Toyota, in particular, has dominated the hybrid market, planning to sell over five million hybrid vehicles in 2026—a company record. Stellantis aims to catch up with or surpass Toyota by developing innovative hybrid systems like the one described in the patent. However, Toyota’s heavy focus on hybrid vehicles has left it behind in the rapidly growing electric vehicle sector, where Stellantis and others are making strides. Stellantis has been cautious in its approach to hybrid and electric vehicles, with recent decisions to remove hybrid systems from certain models, such as the V8 HEMI engine in the Ram pickup truck, which no longer includes a 48-volt hybrid system for 2027. These moves are influenced by U.S. fuel efficiency regulations and financial pressures, including a significant charge of 22.2 billion euros in early 2026. As the automotive industry shifts toward electric vehicles, Stellantis must balance its hybrid development with the increasing demand for fully electric models, leaving its future strategy somewhat uncertain.