Geely vs. BYD: Engine Battle Unleashed!


A heated dispute has erupted between Chinese automakers Geely and BYD over the claim of having the world’s most thermally efficient engine for their Plug-in Hybrid Electric Vehicle (PHEV) systems. Geely challenges BYD’s assertion of achieving 46.06% thermal efficiency, presenting its own engine with 46.1% efficiency. Both companies have obtained certificates from China Automotive Technology and Research Center (CATARC) to support their claims. The disagreement stems from BYD’s announcement of achieving superior thermal efficiency, prompting Geely to showcase its certificate as evidence of having the most efficient engine.

Why does it matter?

The dispute centers around the unveiling of BYD’s fifth-generation DM PHEV technology, which also raised questions regarding the accuracy of key performance figures such as fuel consumption, range, and thermal efficiency. BYD’s emphasis on mass production and Geely’s focus on efficiency certification reflect contrasting marketing strategies in the competitive EV market. Additionally, discrepancies have surfaced regarding the methods used to measure claimed figures, such as fuel efficiency under differing driving conditions and comprehensive range assessment. These discrepancies highlight the need for standardized testing procedures to ensure transparency and accuracy in the EV industry.

How is it going to shape the future?

The clash between Geely and BYD underscores the intense competition within the EV sector, driving innovation and performance enhancements. As automakers strive to establish their supremacy in technological advancements, the focus on thermal efficiency and range optimization will likely lead to further developments in PHEV systems. Standardization of testing protocols and transparent disclosure of performance metrics are vital for building consumer trust and fostering industry growth. The outcome of this dispute may influence future advancements in engine efficiency and propel the evolution of next-generation PHEV systems, ultimately benefiting consumers with more efficient and reliable electric vehicles.