I tried to look for it when driving to work today. It's definitely there in the 40-50mph range and like someone posted, it happens when you lag on the acceleration for a bit. You can definitely feel it in the pedals, the dead pedal area, the yoke, and by extension, the hand holding the yoke. So, it's pretty pronounced. I've felt it a few times before but didn't attribute it to anything specific. If I am being honest, it felt like some of this has been present in every Tesla I've driven and I did not notice it unless I was looking for it.
Unless it is a safety issue or there's certifiable evidence that the wheels are going to fly off this thing when driving, it doesn't bother me much. I'm definitely not discounting that this could indeed be an issue for many folks though! Will be very interested to see what the SCs recommend as long-term fix.
Now, the thing that *does* bother me is a dull thud when making sharp low-speed turns (like in garages and parking lots). That, I've not been able to explain.
Oh, and the other extremely annoying thing is the whistling noise at highway speeds. What's curious is that it only happens in a very specific section of highway on my commute (For those in Seattle metro area, this is the section of 520 right after the 405 exit ramps and before the bridge). I wonder if the car auto-lowers the suspension or some other characteristic in that segment of the road leading to the more prominent whistling noise. (Sorry - I know this is off-topic).