Still under warranty until Oct this year thankfully. The courtesy car has been booked out for 4 days for me, although it won't be returned until my car is vibe free.
1000rpm is the easiest to detect in the car without driving but as can be seen from the video it's not exactly smooth at 600rpm (just not quite as obvious until you're sensitive to it)
The 70mph one seems to be quite common with varying levels of success at resolving - a Google of "BMW F10 vibration" turns up plenty of results. It may well have always been there and I've just put it down to change in surface when it happened, but it's being effectively amplified now with the engine vibes added to it.
Thinking about it, it was there with my winter wheels on as well so it's not the rims unless I've been really unlucky
Got another Cornish trip coming up in 4 weeks, really need it sorted by then, not happy doing a long trip in its current state.