Great Wall Motor says rival BYD failing on hybrid emissions

, , it said on Thursday, claiming its rival's two top-selling hybrid models did not meet emissions standards and triggering a rare public spat.

The public accusation from Hebei-based Great Wall - China's first listed car maker - has thrown it into an unusual, open fight with BYD, the country's largest and most successful maker of electric and plug-in hybrid vehicles that has emerged as a rival to TeslaOn its WeChat account, Great Wall Motor said it had submitted documents on April 11 to China's ecology and environment ministry, the industry and information ministry and the top market regulator alleging that BYD failed to...

Fuel tank pressure is an issue for plug-in hybrids because they are designed to run on electric power alone at times, meaning gasoline remains in the tank longer than it would for a normal internal combustion-engine vehicle.

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Breakingviews - BYD and Great Wall feud portends potholes aheadChina’s Great Wall Motor has made a rare public allegation that BYD’s , Qin Plus and Song Plus hybrid models do not meet emissions standards in the country. Thursday’s accusations sent BYD’s Hong Kong-listed shares down 5.4%, but the whistleblower’s own stock fell 7.3% by market close.
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