YOu may want to go to a bike shop, and try one out on your car. Just about any decent bike shop will carry them. I've even seen them selling in a Walmart Superstore.

Thanks for the advice. Which model is it exactly? I checked the RhodesGear.com site and it doesn't have a list of cars which their racks fit or don't fit.

It has straps that hook onto the trunk lid, and the frame folds in half to lay flat, which is good for keeping it stored in the trunk at all times.

On my 323, the top two straps hook to the top of the trunk lid. The bottom two straps hooks to the side of the trunk lid and slides to the bottom of the bumper, where it then hooks underneath.
THe foot pads rest on the trunk lid and the bottom footpads rest on the top shelf of the bumper. I like this way of alignment because most of the static weight rests on the bumper, not on the sheetmetal of the trunklid.

The only drawback is that once it's strapped onto the trunklid, ...to open up the trunk ..., the bike rack has to unhook from the bumper.