Hyundai: fix wheelbase and steeringratio for Kona, Kona HEV , Kona EV (#24464)

* Update interface.py

* Update interface.py

* Update selfdrive/car/hyundai/interface.py

Co-authored-by: Willem Melching <willem.melching@gmail.com>
old-commit-hash: 0926c269af

selfdrive/car/hyundai/interface.py

@@ -125,8 +125,8 @@ class CarInterface(CarInterfaceBase):
     elif candidate in (CAR.KONA, CAR.KONA_EV, CAR.KONA_HEV):
       ret.lateralTuning.pid.kf = 0.00005
       ret.mass = {CAR.KONA_EV: 1685., CAR.KONA_HEV: 1425.}.get(candidate, 1275.) + STD_CARGO_KG
-      ret.wheelbase = 2.7
-      ret.steerRatio = 13.73 * 1.15  # Spec
+      ret.wheelbase = 2.6
+      ret.steerRatio = 13.42  # Spec
       tire_stiffness_factor = 0.385
       ret.lateralTuning.pid.kiBP, ret.lateralTuning.pid.kpBP = [[0.], [0.]]
       ret.lateralTuning.pid.kpV, ret.lateralTuning.pid.kiV = [[0.25], [0.05]]