The Downforce Add-on for DRIVECLUB has 5 trophies - 2 bronze, 2 silver and 1 gold.
Gain a star in any event of 'Downforce'.
Unlock additional events in 'Downforce'.
Unlock the 'Downforce' Trophy event.
Win the 'Downforce' Trophy event on gold star difficulty.
Gain all stars in 'Downforce'.