Prius Bra questions

I see a lot of posts on PC by people who want to put a bra on their Prius. Looking at my car, nothing appears to be jiggling, and I'm not even sure where the bra would go. Also, I see that many people are getting these "clear bras", which sounds kind of racy to me. I know nothing whatsoever about bras (except what I learned in high school about how to remove one from your girlfriend with one hand in the back seat of your car.) So if there are any bra experts here, maybe you could help me with these questions:

• How do you know what size bra to get for your Prius?
• Do they sell Prius bras at Victoria’s Secret?
• Do Prius bras attach with straps, or do you need a strapless bra?
• If you are going on a long road trip, should you put an 18-hour bra on your Prius?
• If your Prius is not well endowed, should you get a padded bra?
• If you have a clear bra on you Prius, can you be arrested for indecency?
• Do they make Prius sport bras for fast drivers?
• Are Prius bras sold with matching panties?