        ret.mass = 1700. + STD_CARGO_KG  # weight from SX and above trims, average of FWD and AWD versions
        ret.wheelbase = 2.756
        ret.steerRatio = 13.6  # steering ratio according to Kia News https://www.kiamedia.com/us/en/models/sportage/2023/specifications
      elif candidate in (CAR.KIA_OPTIMA_G4, CAR.KIA_OPTIMA_G4_FL, CAR.KIA_OPTIMA_H):
        ret.mass = 3558. * CV.LB_TO_KG
        ret.wheelbase = 2.80
        ret.steerRatio = 13.75
        ret.tireStiffnessFactor = 0.5
        if candidate == CAR.KIA_OPTIMA_G4:
          ret.minSteerSpeed = 32 * CV.MPH_TO_MS
 
</s> remove       ret.mass = 3558. * CV.LB_TO_KG
 </s> add       ret.mass = 2917. * CV.LB_TO_KG + STD_CARGO_KG </s> remove       ret.mass = 3520. * CV.LB_TO_KG
 </s> add       ret.mass = 3520. * CV.LB_TO_KG + STD_CARGO_KG </s> remove       ret.mass = 3228. * CV.LB_TO_KG
 </s> add       ret.mass = 3381. * CV.LB_TO_KG + STD_CARGO_KG </s> remove       ret.mass = 3558. * CV.LB_TO_KG
 </s> add       ret.mass = 2878. * CV.LB_TO_KG + STD_CARGO_KG </s> remove       ret.mass = 4497. * CV.LB_TO_KG
 </s> add       ret.mass = 1536. + STD_CARGO_KG
      ret.mass = 3558. * CV.LB_TO_KG + STD_CARGO_KG
        ret.mass = 1700. + STD_CARGO_KG  # weight from SX and above trims, average of FWD and AWD versions
        ret.wheelbase = 2.756
        ret.steerRatio = 13.6  # steering ratio according to Kia News https://www.kiamedia.com/us/en/models/sportage/2023/specifications
      elif candidate in (CAR.KIA_OPTIMA_G4, CAR.KIA_OPTIMA_G4_FL, CAR.KIA_OPTIMA_H):
      ret.mass = 3558. * CV.LB_TO_KG + STD_CARGO_KG
        ret.wheelbase = 2.80
        ret.steerRatio = 13.75
        ret.tireStiffnessFactor = 0.5
        if candidate == CAR.KIA_OPTIMA_G4:
          ret.minSteerSpeed = 32 * CV.MPH_TO_MS
keep keep keep keep replace keep keep keep keep keep
 HKG: Vehicle mass corrections (#29418)

* HKG: Vehicle mass corrections

* not gross

---------

Co-authored-by: Shane Smiskol <shane@smiskol.com> 
selfdrive/car/hyundai/interface.py