You can now sign up to beta test Rocket League, the PS4 follow-up to one of the most entertaining multiplayer games on PS3, Supersonic Acrobatic Rocket-Powered Battle-Cars. The beta is now underway, and you can register for access at developer Psyonix's website. All you'll need to enter is your PlayStation Network ID, email address, and country (only North Americans can enter, unfortunately), though keep in mind that doing so doesn't guarantee you'll get in.
The ability to tweak graphics settings largely remains the domain of PC gamers. Project Cars is proving to be an exception to that, as it will offer players on Xbox One and PS4 some control over various visual effects. As first discovered by Digital Foundry, these versions include a "Visual FX" settings menu, as pictured below.