My brother gave me mine about 10 years ago and I think it was around $75/$100 then. The ones they make now are similar. Two straps grab the trunk below the rear window, the bottom sits on the bumper against the trunk and two straps reach down and grab the rear bumper under the car. It's mounted to a '99 Camry. I use a huge clothes pin type clamp on each arm that holds the top tube and just at the junction of the seat stays and seat tube, but it's an Elsworth Distance (dualie) so I have to be tricky. The bike rests against the clamps on the horizontal rack arms and it keeps the bike away from the trunk. The pedal clears the bumper by about an inch and a half.