Grand Theft Auto Online gameplay keeps changing. Sometimes it is thanks to Rockstar Games, and sometimes it's courtesy of crafty players. This week, the game developer has promised upcoming updates, and yet another cheat keeps the game interesting.

Despite Rockstar Games' efforts to prevent players from getting piles of GTA$ without doing the hard work of robbing and shooting, gamers keep finding ways to break the rules. The latest update allows gamers to get fast cars -- Carbon RS, HotKnife, and Khamelion -- for free.

According to Motoring Crunch, in order to get your hands on these free cars, you must first open your phone in the game. Next, using the browser, go to the legendary online car shop and select "find cars." After that, return to the home page. Go to the address bar, and type B or circle, and then A or X. After that, enter the Legendary website address and change the number sequence to either 28 for the Khamelion car, 29 for the HotKnife, or 30 for the Carbon RS.

"Load the address. Once done, return to the homepage and place the cursor on the search bar. Key in B followed by A," Motoring Crunch reports. "Also, you will have to delete everything that comes after the forward slash. (/) and key in 'PurchaseCar'. Search for it. Leave the browser and check your garage. You will see the car there."

In addition to the free Valentine's Day Massacre Special update that will be released this Friday, Rockstar Games also promises more updates, including highly-anticipated changes to Heists. According to the game developer, information about the impending updates is on its way.

"We will also have more information soon for other forthcoming GTA Online content updates including the Dangerous Business Pack, Online Heists, an expansion to the Creator tool and lots more," Rockstar Games told Attack of the Fan Boy.