Every BMW V8 past the m62 seems to need vss job eventually I just plan for it. I'll be using some treatment that's designed to stave off the job but vss job doesn't scare me though I hope with n63 like the n62 you can do it in place vs. the official take out the engine method. We only have 80k on our car so I think it's a few years off. That said we also have the only gas motor X5 since 03-04 without Valvetronic and as marvelous as a tech that is it greatly complicates maintenance.

Back to my original explanation of why i would be cautious of the s motors: they push the limits and that's where things break.

I would absolutely buy one if I had the budget for it to be my weekend screamer but daily driver nope.

I think a couple people here have both N62 and S63 motors to give you the proper hands on feedback.

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2011 E70 • N55 (me)
2012 E70 • N63 (wife)