bike rack recomendations

Hey anybody out there using a bike rack for their stang that they could recommend? I just made a trip with 2 bikes on my (cheap) trunk mnt rack, and it really scuffed up my wing and trunk. i am looking for a roof mount type that won't damage my car,(2000gt) or launch the bikes into the ditch if i floor it, or take a hard turn. any opinions on which ones to go with, or avoid, is apriciated . thnx