         chassis.receiveShadow = chassis.castShadow = true
              } else if (child.name === 'Tire') {
                tire = child
                tire.receiveShadow = tire.castShadow = true
                tire.geometry.center()
              }
            }
          })
          // this.add.existing(gltf.scenes[0])

          if (!chassis || !tire) return

          this.add.existing(chassis)
          this.physics.add.existing(chassis, { shape: 'convex', mass: 1200 })

          // chassis = this