Well 5 days into ownership of my 2013 LR4 and during an extended period of rain yesterday I noticed water splashed all over my passenger side door panel and seat. I was reversing and hit the brakes when I saw this, which caused a stream of water to pour out of the plastic "airbag" plug and from around the right side sun visor arm. Ugh. I took it in to the dealership this morning and the tech disassembled the A-pillar and showed me how the sunroof drain tube comes out behind some foam insulation in the passenger-side engine air intake vent. Theres a notch in the foam insulation that is supposed to allow clearance for water to flow down to another tube that exits behind the front wheel. There's not enough space in this notch however, so the solution is to take a razor blade and make a bigger notch for more clearance in the foam. It gets clogged easily and backs up, causing water to overflow in the sunroof and go wherever it can. He said he's been doing this fix since the LR3's. Great design LR.
Then on my way home I look over my shoulder and see a large (1ft by 8") water stain just above the passenger-side C-pillar and a bit on the C-pillar itself. Great. I'm not sure how this happened because it is well "uphill" of the sunroof leak. Is it a leaking 2nd row glass panel? I don't know, but I'm taking it back to the dealership for them to investigate.
I expect such things from my convertible sports cars (even then it's annoying), but this is unacceptable from a modern, "rugged," all-weather, all-terrain vehicle that has had the same problems for what, 10 years now? Totally ridiculous.