My experience might not quite be the exact same thing, but it happened a couple years ago.
I was driving my family home one afternoon and passing through the downtown area when I got the sensation that the van was sort of "floating" along,
as if everything outside the van was as if I were watching a television screen, and we were merely imagining the sensation of movement. I managed to
keep the vehicle steering right so we stayed in our lane until the feeling passed about 5-10 seconds later. Nobody else in the car experienced the
same sensation. It seemed like I was playing a video game where I had to keep the car on the road, and fortunately I did, because we were passing
through a narrowing part of the freeway passing under another road while going through a curve at the same time.
It has not re-occurred, but I always check myself each time when driving through the same section of freeway.