This tallies with what we've heard from a couple of other sources. It sounds like Lotus have improved the drainage of the doors on later cars, but the root cause seems to be faulty primer/sealer. What no one seems to know, including the dealers, is whether all cars before a certain build date are affected or just some batches. No one except Lotus of course and annoying they are not doing the right thing and recalling all affected cars. I have a November 22 build car. No blisters so far but I'd really like to know either that it is not affected, or if it is that it will be fixed within the warranty period.