Have driven my cars hard and never worried about my cup tumbling out. And yes, it’s as simple as sliding them under the center console on either sideYeah, somebody email the guy, and see if he's still making them. I always carry a water bottle (a large 30-oz Stanley) that no way in **** it'd be held by the puny stock cup holders. In fact, I'm almost sure the weight would break it instantly. Those just seem to slide under the trim, right? Looks like a great idea if they stay put, like it seems to be the case. Thanks for the update. I get the car until Oct, so still have time to get crap. Ha ha.