That depends on the weight of your bikes as well as their tire size; so long as they are 33 lbs or less and have tires that are 3 inches wide or narrower, you will be able to use the Thule rack you asked about:
- Thule OutWay Platform Trunk Bike Rack for 2 Bikes # TH65JV
Bikes larger than that will not be able to fit on the rack. view full answer...
If your 2009 Volkswagen GLI sedan has a factory-installed spoiler on the edge of the trunk, then the Thule Passage 2 # TH910XT is a confirmed fit. I checked directly with Thule also and their FitGuide confirms this rack fits your GLI.
If you care to you can add a Passive Security Strap # TH533 to help deter theft of the rack. A cable lock such as # e98891 allows you to route the cable through both bikes' frames and wheels and then secure that cable to either a rear tow hook if the car... view full answer...