Recently bought a bicycle and I'd like to get a trunk-mount rack for it. I have already considered and rejected roof-mount racks (don't want to have to lift ~25lb bike on and off the roof) and hitch-mount racks (car's already lowered so I'm worried about scraping, plus costly to pay for hitch equipment & installation on top of the hitch rack itself).

I've got an OEM-style spoiler, so I'd need a rack that can clear it. So far the consensus among non-G drivers is to get one of the following (with the Saris options getting more far more recommendations than the Yakima):

Saris Bones 805 (Amazon.com : Saris Bones 805 (2-Bike) Trunk Mount Rack : Automotive Bike Racks : Sports & Outdoors)

Saris Bones RS (Amazon.com : Saris Bones RS (Rachet Strap) Trunk Rack: 3-Bike; Black : Automotive Bike Racks : Sports & Outdoors)

or the Yakima KingJoe 2 (Amazon.com : Yakima - King Joe Trunk Bike Rack : Sports & Outdoors)