You're browsing the GameFAQs Message Boards as a guest. Sign Up for free (or Log In if you already have an account) to be able to post messages, change how messages are displayed, and view media in posts.
I've never had it as a power up myself, but it's basically F1RS's version of the blue shell in Mario kart. I.e. It's a big "screw you" to whoever is in the lead. The difference is that it doesn't automatically grant someone else a better place. Like in real f1, it bunches up the pack, creating a really tight fight for the lead. I prefer it to the blue shell because the leader has a fighting chance to keep their place.