I have one that is rated for 500lbs. It is made of aluminum by a company named 5 Star. It is very easy on and off, it comes with a ramp that fits on the rack. It would be relatively easy to get a few people to sit in the back of your car or stand on the bumper and see if the car is ok with it. Mine has only been on an E350 and a F250 so weight was not an issue. I highly recommend it.