These are my personal traffic spawning files. It's geared towards realism and not every car in the game will spawn,
I've left out of a lot of hypercars and anything unrealistic like the Phantom Wedge, 
and certain cars I just think are ugly, like the Revolter. 

7.0 Update: Now includes popcycle.dat because I've created unique vehicle groups for rare cars, so that they
don't spawn too often like before. Now they are much more exciting to come across.

BOTH FILES ARE NECESSARY!


Installation:

Copy and paste popgroups.ymt in:

mods > update > update.rpf > x64 > levels >  gta5

And paste popcycle.dat in:

mods > update > update.rpf > common > data > levels > gta5



To prevent DLC cars from despawning, you will need this trainer:

https://www.gta5-mods.com/scripts/simple-trainer-for-gtav