Just got my MY 2 days ago and have a question about opening the trunk. I have a drive way which slopes slightly. When I park with the front of the car sloping downward the trunk will not fully open. I open the trunk and it opens about a foot then stops like it too heavy and then closes. If I give it a boost it will open. Are the hinges so weak that the car needs to be almost level to open the trunk automatically or do I need to report this as a problem?