On the driver's side, the black plastic sill cover is bumpy towards the rear of the panel. It's almost like it has pebbled beneath the surface or something. My guess is there's a thin layer of foam beneath the hard plastic surface that's pilled up. Has anyone else experienced this? I'm sure the only way to resolve is to spend silly money on a new trim panel. But maybe it's common and they'd replace it for free? I dunno.