Back...
We were on our way to some event (can't recall what it was). The whole journey was uneventful until that point. Our journey started in the early hours of the morning; around 04h00 to be precise, with plans to arrive at our destination just after 07h00. It was a fairly quiet road in the backwaters. The surface was decent, with a large hard shoulder and no vegetation from the edge of the shoulder. A few tens of metres out, it was sparsely wooded so, we could make out shapes in the wintry twilight.
Suddenly our leisurely ride was broken by approaching headlights. It was a minibus. As it got closer, I noticed a woman figure attempting to cross the road. The minibus hooted and drove past. My SO froze in her seat. I almost swerved as the figure somehow disappeared from around the A-pillars of both cars as they sped past each other. I thought the minibus was going to hit her. As we drove past, I looked in the rear view mirror, expecting to see the taxi slow down/stop. It didn't. Also, there was no sign of a woman. As I was making a u-turn, I asked SO if she saw what I saw. "I saw a woman in black clothes about to jump in front of the car. I thought you were going to hit her, then she disappeared". This is pretty much what I saw as well. I illuminated the road, hoping to see signs of a human or telltale signs of an accident. I saw or heard nothing.
Later that day, we visited my parents. I asked non-specific question about the area and she confirmed were were not the first people to encounter the woman in black clothes. Weeks prior to our encounter, someone apparently went off the road and when questioned, he reported seeing a woman cross in front his car, so he swerved to avoid her.
Something like that. Maybe it's a hologram