Yet another one; uploaded very recently:

This video from yet another source includes lots of Riverside parking lot racers, burnouts and racing in the intersection of Archer and Ashland, fireworks and gunfire.

Here's another local meetup from last year:

Another video from the night the car was demolished in the Riverside parking lot:

Here's yet another, this from last summer, including lots of footage of the Mariano's lot:

I have noticed a solar based video system set-up added to this parking lot since at least the end of April. There is also now a bright yellow gate set up. I haven't heard any circular-squeals heard for a while, and I am glad this case was moved forward on!