I had a Yakima KingJoe 2 on my former car (Nissan Maxima sedan) for a few years. It was awesome. Always felt very secure both in terms of the bikes onto the rack and the rack onto the car.
I would HIGHLY recommend going to http://www.etrailer.com/dept-pg-Trunk_Bike_Racks.aspx
and reading the reviews and videos to find which one you want. Etrailer.com has video reviews on every rack along with pictures of every rack on multiple vehicles.