I believe it has the short sills fitted the ones with open vent holes
Thanks for all the replies I think this winter I will tackle it as I want to remove all the foam insulation from behind the engine so might be a good time if the engine is out and I can flip the shell over
There's a little more going on there than just the flitch panel and what appears to be a so corrosion on a small part of the floor panel and toeboard.
There appears to be a patch on the sill as well so the question here is, what sill has it got fitted?? Oversill or standard short sill??
So that’s relatively good news then so hopefully no nasties hiding there which we see oh so often on here.
I think the best thing you can do is fully wire brush every that appears to be affected and I mean using a twisted wire cup on a grinder.
Then you will get a better overall picture of what is actually affected. The problem with minis as I have reiterated countlessly over the year is minis rust from the inside out especially in any seams, so for example where the flitch wraps around the floor/ inner sill/ toe board.