If you're in the market to buy a trunk bike rack there are plenty of great, well made, long lasting options out there. I will highlight the 10 best bike racks for car trunks.
DIY Bicycle Rack Built For Two — Apartment Therapy Reader Project Tutorials. Don't live in an apt but this is great.
Dura Assist 4 hitch mount bike rack - Parallelogram design allows access to vehicle with bikes loaded, with hydraulic assist
6 X Elastic Bungee Straps Cord Rope Set Hooks Car Bike Rack Bins Luggage Travel #Edwards
Car-shaped bike rack: space for 10 bikes, or one car.
Three Mounted Bike Rack/Car Bike Rack/Bike Rack $30~$40
Three Hitch Mounted Car Bike Rack $30~$40
bike rack folds small for travel