The roof ain't
Obvoiusly a warranty fix, but is this a serious job? Is it a clam off or can the seals be fixed from inside the footwell? The bottom of the footwell looks pretty well-sealed. I'm not sure, but I think it might be coming in from the side, down from the sill. That's the direction the rain/wind was coming from today.
Think I might just leave the car with MMC while I'm away over New Year to get this sorted, along with a couple of other things I wanted them to check under warranty.