Thanks Mumof4 searched for thresas posts and found mention of the trim panel above scuttles letting water into passenger / driver footwell. Removed panels, cleaned gunge out of whole area siliconed holes and clips, refitted panels, washed car so far no water so looking good. Who'd believe such a design error could exist, the hole is right where the rubber "gutter" directs all the water from roof and windscreen. Hope it's really fixed this time, getting rather bored sitting in the car whilst fan heater and hot air gun dry out carpet and what's left of the underfelt and soundproofing. Cheers Colin