an "over the top" style rack is good for this application. the weight of the bikes sits on the back bumper. there are 2 other supports that rest against the vehicle & or rear window. the high top bars have the straps that bypass the spoiler completely

I got this one preowned on CL



I forget my brand but looks like Hollywood makes one for your car
http://www.hollywoodracks.com/bike-r...ler-trunk-rack