This happen to me a couple of years ago, I was driving back home from segamat[johor] to singapore alone. This because whole afternoon I spend my time at my aunt house there. I left there around 8.00pm. On my way back, I drive at one of the small road there[cause there is a short cut to highway there].
Suddenly, a man was waving my car, so I stop and asking why. He said he want to take a lift until at a coffee shop nearby. I said okay, and he sat at the back seat. I felt like something strange.
When I passed at cemetery area and look at my back view mirror, on my horror, there is no one at back. I felt like the whole car shaken, but lucky I can calm myself down and read some prayers.
When i reach at the coffee shop, I told the uncle there what was happen to me a moment ago. Then the uncle told me that not only me. Others who passes the road there also have the same encounter like me.