function CalculateNewPosition(speed : float, turnSpeedDegrees : float, time : float) {
    var turnSpeedRadians = turnSpeedDegrees * Mathf.Deg2Rad;
    var travelDistance = speed * time;
    var arcRadians = Mathf.Abs(turnSpeedRadians) * time;
    var radius = travelDistance / arcRadians;
    // Start by assuming the vehicle is at the origin
    var circleCenter : Vector3 = Vector3.zero;
    var newPos : Vector3 = circleCenter;
    if(turnSpeedDegrees > 0) {      // Turning left
        circleCenter.x -= radius;
        newPos.x = circleCenter.x + radius * Mathf.Cos(arcRadians);
    } else {                        // Turning right
        circleCenter.x += radius;
        newPos.x = circleCenter.x - radius * Mathf.Cos(arcRadians);
    }
    newPos.z = radius * Mathf.Sin(arcRadians);

    //finally, transform it relative to the vehicle (might mess up if your vehicle
    //isn't at a 1x1x1 scale)
    this.transform.position = transform.TransformPoint(newPos);
    // And rotate the vehicle along the curve
    this.transform.rotation = this.transform.rotation * Quaternion.Euler(0, Mathf.Lerp(0, -turnSpeedDegrees, time), 0);
}