OK, I've learned a few things since my last post. Most recently, the frame-less windows on the coupe suck when the car has been coated in ice. The windows couldn't move down enough to open and close the doors properly. Getting the door open wasn't too hard, but I couldn't close it all the way from inside the car. I drove to the gas station this morning with a door ajar indicated until I was able to use their antifreeze and wiper to soak the rail until the window moved.