The 2020i Isuzu NPR-HD Gas vehicle features a new GMPT Gen V L8T V8 gasoline engine that operates at 350 HP at 4500 RPM, and features 425 lb.-ft. of torque at 3800 RPM. The vehicle also features a crew cab option for up to seven passengers, plus a new, larger stainless steel 38.6-gal. fuel tank.Isuzu Commercial Truck of America.