Unfortunately, my Saris Bones RS Trunk Rack for 3 bikes does not fit on my new Nissan Leaf. This has been the best trunk mount bike rack I have ever seen and used. And, the best part is that it locks to the trunk to secure your bikes (make sure to lock your bikes to the rack) while you grab something to eat.
You can check the saris website to find out if it will fit on your car.
Price: $200 (retail $299)
Email me if you're interested or have any questions.