Some liveries I've been working on, using the Speedo template from vdH METT/Coroner Mod.
Weazel News - GTAV has a news van but it's pretty bland. Made my own using the LC skyline.
Badger - Used Verizon as inspiration, using red/black/white. Quite Simple.
Whiz - Used Sprint as inspration, using yellow/black. "Take a Whiz anywhere" is used in a GTA V billboard.