Downforce: Civilized promo card is a one card expansion for Downforce. This new player power can be added to the base game to allow for more variety each game. The card reads as follows:

Civilized - On your turn, you may choose a car on your speed card owned by another player. If you do, they move that car before you move the rest of the cars on your card.

For more information, visit the BGG listing.