Posted by: mcthiel on Oct-23-12 2:51 PM (EST)
I've got a Thule rack on my Golf TDI and some 2x4s to extend it for 2 boats without issue.
My buddy (also with a Golf) just uses foam blocks and straps that went through the passenger compartment and he was hauling a 17 footer without serious problems. The only issue was that at around 120km/h the straps started vibrating so loud you could swear there was a swarm of angry bees following you. Just add some tape to them so they arent so flat and prone to vibrating in the wind and you're golden.