Faster time:
While you are flying and your wings are about to retract, pause game play. The wings will retract while the game is paused, giving you a quicker landing and possibly a faster time.
Chicken Car:
Play the Super Chicken Race (race with wings equipped on any car) and intentionally drive off the cliff after the goal. Your wings should activate, taking you to a remote island. On the remote island, you should find a chest. Run into the chest, and the race will end. You will presented with a Chicken car.