I have been trying to find this movie for many years now. I remember watching it in around 2005 or so. It wasn't a popular one. In local video centers the movie was rented as "Predator 5".
I remember a little bit from the movie, there are group of people including a woman who have some sort of Predator like creatures inside them. There was a scene where a man is on the ground naked and suddenly a tail comes out from his spine. Soon after he got torn apart and a full grown alien comes out and the creature's head is like a battery because as I remember it was similar to a box.
Also there was another scene that all these people with creatures inside were in a highway holding hands when a truck comes in their way.
Another scene, the woman gets shot and she doesn't die, instead the creature inside her dies and comes out of her body like a soul leaving the body.
I am sure it should be a B-grade or low budget movie. Many of my friends remember the movie but no one actually remembers the name.