_LEFT = 0
          const FRONT_RIGHT = 1
          const BACK_LEFT = 2
          const BACK_RIGHT = 3

          let engineForce = 0
          let breakingForce = 0
          const steeringIncrement = 0.04
          const steeringClamp = 0.3
          const maxEngineForce = 5000
          const maxBreakingForce = 100

          const speed = this.car.vehicle.getCurrentSpeedKmHour()

          this.camera.lookAt(this.car.chassis.position.clone())

          // front/back
          if (this.keys.w) engineFor