BYD's Fifth-Generation Hybrid System Achieves 80 MPG Equivalent Fuel Economy

SHANGHAI – Chinese automotive giant BYD has made a significant stride in hybrid vehicle technology, announcing that its latest electric-petrol hybrid system has achieved an impressive 80 miles per gallon (MPG) equivalent fuel efficiency. This advancement, part of the company's fifth-generation Dual Mode (DM) hybrid technology, positions BYD at the forefront of fuel-efficient vehicle development.

The notable efficiency figure, specifically 2.6 liters per 100 kilometers when the battery is depleted, represents a 10 percent reduction from the previous 2.9 liters per 100 kilometers. This improvement has been certified under the NEDC standard by China's National Motor Vehicle Quality Inspection and Testing Center. "BYD achieved 80 MPG with their new electric petrol hybrid," stated Kumar in a recent social media post, highlighting the breakthrough.

BYD initially launched its fifth-generation DM technology in May 2024, featuring it in new sedan models such as the Qin L DM-i and Seal 06 DM-i. These vehicles boast an engine thermal efficiency of 46.06 percent and a combined driving range of up to 2,100 kilometers (approximately 1,305 miles) with a full tank and fully charged battery. The company has confirmed that the enhanced fuel efficiency will be rolled out to existing vehicles equipped with the fifth-generation DM technology through over-the-air (OTA) updates.

This technological leap comes as BYD faces increasing competition and a recent decline in its hybrid model sales. Despite strong performance in battery electric vehicle (BEV) sales, the company's passenger plug-in hybrid electric vehicle (PHEV) segment has seen a consecutive monthly year-on-year decline. The introduction of this highly efficient hybrid system is expected to bolster BYD's market position and attract eco-conscious consumers seeking both extended range and reduced running costs.

Industry experts note that such high fuel efficiency, particularly when the battery is depleted, underscores the sophistication of BYD's hybrid powertrain management. The focus on maximizing gasoline engine efficiency in a plug-in hybrid setup offers a compelling proposition for drivers, potentially saving them significant fuel costs annually compared to traditional gasoline-powered cars.