Every now and then, Rockstar compiles a list of the best GTA Online custom jobs out there. Now, these usually aren't random pickings of a few jobs the guys running the Newswire personally like — they often follow a specific theme, sometimes even announced ahead of time to allow the greatest job-crafters to make something specifically for the next list.
The most recent GTA Online DLC update which contained more than just a single car or Adversary Mode was Lowriders: Custom Classics back in March. This update not only added a whopping three cars and an Adversary Mode, but two new weapons as well alongside some character customization options.
This particular DLC is the theme of the newest list of custom jobs that Rockstar has endorsed on the Newswire. These missions have been designed specifically for the content released in that GTA Online update — not sure how exactly that works, but okay.
The Playstation 4 is getting a lot of love in this list, with the most jobs having been made for this platform.

PS4 players can engage in a hectic and challenging race — with a vehicle that isn't quite suited to racing — on the Minivan Madness obstacle course. This race-track has some challenging twists, turns and jumps that you need to brave with your lumbering Custom Minivan.
Should this not be enough to scratch your racing itch, two other jobs should suffice. Dirty Lowriders is a particularly long lowrider-centric race which finishes in Grove Street, a pretty important location in the history of GTA. The Sabre Turbo Custom Island Cruise, on the other hand, is a tight and curvy circuit designed to push the greatest muscle car in the game to the limit.