The main characters could be two lovers who are from different social classes. Their relationship is a taboo in their society, and they use the secrecy of a car ride to be together for a short time.
Well, it could be about a person hiding something illegal in the car during the ride. For example, smuggling some rare items that are not allowed to be transported without proper authorization.
Well, there are those car rides where someone tells an inappropriate joke that makes the whole family uncomfortable. Maybe it was a joke with a bit of a mean - spirited edge that targeted a family member. Also, sometimes there are car rides where a family member starts talking about their unfulfilled dreams in a way that makes others feel guilty. Like if an aunt keeps talking about how she always wanted to be an artist but couldn't and it makes the family feel bad for not supporting her more in the past.
The main character could be a lonely driver in the car, and the star could be a sentient being, like a star spirit. They could interact in some magical ways.
I don't know as there's not enough information given. It could be a story about an individual on their own ride, so the main character could be a single person.
Santa Claus himself could be a character. He could be taking a test ride of his new sleigh, making sure it can handle all the presents for the children around the world.
Max is one of the main characters. She is the leader of the group. Fang is also important, he's a strong and somewhat mysterious member. Iggy, who is blind but has amazing other senses, is part of the main crew too.
Some of the main characters include Ocean, Mischa, Noel, and Constance.
Since I'm not familiar with 'the last ride short story', I can't tell you the main characters. However, if it's about a final ride in a vehicle, there could be a driver as a main character. And if it's set in a more emotional context, like a last ride with a loved one, then the people involved in that relationship would likely be the main characters. There might also be side characters that help to develop the story, like people they meet during the ride or those who are related to the reason for this 'last ride'.
Given the lack of context, the main characters could be a couple in a romantic relationship, with one giving the other a piggy back ride as a playful gesture. Another possibility is that it could be a story about a stranger helping someone by giving them a piggy back ride, so the main characters would be the helper and the person in need of help.
I don't know as I haven't read it, so I can't say who the main characters are.