Vector3 PerimeterCheck (Transform thisCarsTransform, Collider thisCarsCollider) {
	if (Physics.CheckSphere (thisCarsTransform.position, detectionRadius)) {
		Ray forwardRay = new Ray(thisCarsTransform.position, thisCarsTransform.forward);
		var hits = Physics.SphereCastAll(forwardRay, detectionRadius, detectionRadius);
		foreach (var hit in hits) {
			if (hit.collider != thisCarsCollider) {
				if (hit.transform.tag == "Player" || hit.transform.tag == "Car" || hit.transform.tag == "Boundary") {
					// Red = from origin to point
					Debug.DrawLine(forwardRay.origin, hit.point, Color.red);
				}
			}
		}
	}
}