The recently released "Ill-Gotten Gains" downloadable content (DLC) for "Grand Theft Auto 5" still has more unknown features than what Rockstar Games has previously advertised.

The hidden features were discovered by one intrepid "GTA 5" fan with a YouTube username of "MrBossFTW," and he revealed most of the secrets found in the DLC in his latest gameplay video.

Nearly all of the secrets unveiled in the video are related to some of the cars added by the "Ill-Gotten Gains" DLC. One hidden feature will enable players to cruise around in a topless Lampadati Casco, according to International Business Times UK. The topless Lampadati Casco patch is available from the game's online auto shop, though Rockstar Games may be primed to take down the feature any day now.

Another hidden feature concerning cars involves the Pegassi Osiris. This time, the widely unknown feature is not reliant on a glitch within the game and is instead something simple: the car's logo lights up whenever the player chooses to turn the vehicle's headlights on.

One more in-game hidden feature found in the "Ill-Gotten Gains" DLC for "GTA 5" is one that involves the Dika Akuma sports bike. This hidden feature enables players to obtain the bike sans its fenders and body, leaving only its frame intact. The strange-looking bike is based on an in-game glitch, so Rockstar Games is likely to fix it before long.

All of the hidden features are found in the first part of the "Ill-Gotten Gains" DLC, with the second part of the bonus content set to arrive next week, according to Gotta Be Mobile.

The second part of the DLC is expected to add bonus content in the form of new accessories, weapons and cars. The latest update is also set to take the previously PC-exclusive radio station known as The Lab to the game's console platforms.

Rockstar Games has already announced that the second part of the "Ill-Gotten Gains" DLC will be released on July 8.