[I'll try a better subjectline, just in case.]
How various vehicles interact with bikes seems of interest. Some do much better than others.
Then there's all the Yakima, Thule and kindred rackage. Possibly special mods, angles, options, brands, deals show up now and then that are worth discussing or sharing.
But maybe the ways/questions/threads about how people solve all their bike-hauling-around should just go in the Gen'l section?