I have a 2004 Toyota Corolla sedan and a new Jamis Citizen bike. I was wondering if anyone had any good bike rack suggestions. I want something that goes on the back of the trunk that I can easily put on and take off for weekend rides at the beach or nearby bike trails. I am pretty new to riding and I was wondering if bike racks are safe to leave on your car when you are off riding somewhere? Are there locks or something on them? Can people just come by and steal them off your car? Also are they pretty good at NOT scratching up your car? ANY advice/info. is appreciated. Thanks alot and Happy Trails.