diff --git a/simModel/common/carFactory.py b/simModel/common/carFactory.py
index 025ec36..cdfe4d3 100644
--- a/simModel/common/carFactory.py
+++ b/simModel/common/carFactory.py
@@ -333,8 +333,8 @@ def plotSelf(self, vtag: str, node: dpg.node, ex: float, ey: float, ctf: CoordTF
                        for rv in rotVertexes]
         drawVex = [
             [
-                ctf.zoomScale*(ctf.drawCenter+rev[0]+ctf.offset[0]),
-                ctf.zoomScale*(ctf.drawCenter-rev[1]+ctf.offset[1])
+                ctf.zoomScale*(ctf.drawCenter+rev[0]+ctf.offset[0]).item(),
+                ctf.zoomScale*(ctf.drawCenter-rev[1]+ctf.offset[1]).item()
             ] for rev in relativeVex
         ]
         if vtag == 'ego':