User blog:RainingPain17/Ill-Gotten Gains Part 2 announced

Rockstar revealed the upcoming content to Grand Theft Auto V and Grand Theft Auto Online as part of the new Ill-Gotten Gains Part 2 update, the second release of this early (and hot) summer. The update will be released next week.

Progen T20
A "new" super car, similar in design to the Turismo R.

Coil Brawler
An off-road sports buggy made by Coil for some reason.

Invetero Coquette BlackFin
A new edition of the Coquette with a vintage design.

Lampadati Toro
A fast boat. With a wooden finish and a cool name.

Vapid Chino
A muscle car made by Vapid.

Dinka Vindicator
A bike similar in design to the Thrust.

Marksman Pistol
A one-shot pistol with a high damage per shot. Similar to a sort of mini-Musket.

Brass Knuckles
Golden brass knuckles to beat the shit out of people with solid gold.

New clothing
Much like previous update, new clothing (not fully announced yet).

The Lab
The PC exclusive (or rather former exclusive) is coming to all consoles with this update.

Sauce: http://www.rockstargames.com/newswire/article/52458/ill-gotten-gains-update-part-two-coming-to-gta-online-next-week