Unlock everything!
On the menu where Aracade,challenges etc are press: R1,R2,L1,L2,R1,R2,L1,L2 a key pad will appear.
Now type in SPEEDFREAKS
All track events should now be open.
Now do the same thing again to make the key pad appear. Now type in WORLD CHAMP
All bikes, videos, leathers, helmets ect will now be open as well.