While traveling, and opening the app, the array of vehicle options surprises me, and I usually don't have a clue what they are. I suppose that is what happens when living in the land of practical without a lot of need for transit pretension.

So what are all these various types? Please add here, with the description. In the SF Bay Area, we've only got:

Uber X and XL, the economy approach, with more room (XL) if needed.
Uber Black, the nicer car, including many drivers with TCP licenses
Uber SUV