i have the thule 2-bike trunk rack (and a thule 4-bike hitch rack). it’s very good once you get it set in a position that you like…ie, it doesn’t cover your license plate, bikes don’t hang too low, bikes don’t hang at angle so they’re not pushing against each other. i imagine a 3-bike trunk rack would have to be pretty robust, so i wouldn’t scrimp too much or you might be seeing them dangling in your rear view mirror someday (happened to me once on the highway in July!).