After pretty much all of its content was leaked some time ago we can now actually play the long awaited Be My Valentine DLC in GTA Online. Rockstar released a content update to commemorate this date last year (and the year before) as well, adding new clothes, a vehicle and some special events.
This is hardly a major DLC release such as Lowriders or Executives and Other Criminals were. Rockstar tends to release small-scale DLCs in honor of certain real-word events like Independence Day and Thanksgiving. Valentine's Day is getting more than an Adversary Mode, though.

Returning to GTA Online better than ever is the old timer Roosevelt, now with an updated model. Dubbed the Roosevelt Valor, the new version of the car features a polished in-game model and new customizations at Los Santos Customs. It seems the fan theory that the Roosevelt will make its way to Benny's in wake of the Sultan and Banshee have fell through. Last year's Roosevelt has been made available for purchase as well in case you missed out.
The DLC also adds a massive amount of new vintage style clothing to GTA Online. Not only is there a massive collection of new attire with all the items needed for your retro charmer outfit, underwear and all, but the clothes from last year's DLC can be bought once again! The replica tommy gun is back in stock as Ammunation as well.