GWM will broaden its Haval H6 midsize SUV offerings with two new powertrains, adding a plug-in hybrid to its Lux grade, and new mild-hybrid all wheel Haval H6 model range expanded with cheaper PHEV and exclusive all-wheel driven mild hybrid set to take on BYD Sealion 6, Chery Tiggo 7 PHEV, and MG HS PHEV