A modern Formula 1 power unit squeezes more useful work from a liter of fuel than any production car on the planet.

Geely now holds a Guinness World Record for thermal efficiency, with its new i-HEV system rated at 48.4%, according to a ...

Horse Powertrain is making a bold play just as the industry starts hedging its EV bets, offering a pathway to convert ...

What is it doing designing a Dedicated Hybrid Engine (DHE) powertrain? Well, it’s heavily vested in keeping combustion ...

In addition to the usual challenge of actually winning the Indy 500, for 2025 drivers and teams must now contend with a new and potentially decisive factor for this year’s edition of the Greatest ...

INDIANAPOLIS — Helio Castroneves felt an immediate difference — a subtle but noticeable uptick in speed — the first time he utilized the boost of horsepower offered by IndyCar's novel hybrid engines ...

Saudi Aramco, the world’s largest oil company, is pushing into the engine business. In a letter of intent announced in spring ...

Modern hybrids have been helping folks save gas for about 25 years at this point, with the first mainstream model, the Toyota Prius, launching in Japan in 1997. Yet, even after a quarter of a century, ...