This was very well written.
Too often, people can't, or don't take the time to, relate details which really drive the story. You set up the parking lot, and you used the car as more than just a surface; it was an actual part of the storytelling, as it should be, and not just a prop. The thing I liked most about that was you repeatedly referencing being pressed on it, and then relating the feeling of the "bumps and grooves" on its surface. That was really something.
The context is great, your use of pacing is really good, the dirty talk is awesome and completely appropriate for the scene- a lot of the time, it seems like people don't talk dirty enough or talk too dirty in certain situations that seem to better evoke the opposite. Also, the first-person is really nice as the woman. A lot of the time it's either first-person from the man's point of view, or just 3rd person narrative. This was very good.
All in all, very well done. And don't worry about the dirty talk- not only is it fine for the format, but it's almost demanded by the storyline.
