[Ooper]

I have not found a gate that does not open through the window unless the sensor is below the bottom edge of the window and the card cannot be directly across from it. I drive a van and the windows are higher than a normal car with fairly large mirrors sticking out from the sides. Even so, I can still get comfortably close enough for the sensor to pick up the card and there may only be one or two gates where I have to open the window because the sensor is located lower than most. If your gate doesn't open through the window, perhaps you are not close enough or the card is not directly across from the sensor.