Great Wall Motor (GWM) has officially launched its premium plug-in hybrid MPV, the Wey G9 Hi4 PHEV, in Malaysia. The Wey G9 Hi4 PHEV features dimensions with a 5,050mm length and a 3,085mm wheelbase. Wey G9 Hi4 RHD. Powering the Wey G9 Hi4 PHEV is GWM’s Hi4 intelligent hybrid system, which combines a turbocharged engine with dual electric motors for front and rear axle propulsion. The Hi4 PHEV system offers up to 170 kilometers of all-electric range for daily commuting and a combined range exceeding 1,000 kilometers.