Added cars trainerv.ini lines for Executives and Other Criminals update by EnvoMods 

Here you go, here are the lines for the trainerv.ini!
These lines add you a compatibility to spawn all new online update dlc cars in single player.
They are all in Added Cars menu in Simple Trainer.

Note that you have to install Simple Trainer!

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

Installation: 
1. Open trainerv.ini file in your game root directory. 
2. Find //Added Cars // and paste following lines instead of existing ones:

[AddedCars]
Enable1=1
ModelName1=Baller3
DisplayName1=Gallivanter Baller LE
Enable2=1
ModelName2=baller4
DisplayName2=Gallivanter Baller LE LWB
Enable3=1
ModelName3=baller5
DisplayName3=Gallivanter Baller LE Armored
Enable4=1
ModelName4=baller6
DisplayName4=Gallivanter Baller LE LWB Armored 
Enable5=1
ModelName5=cargobob4
DisplayName5=Cargobob
Enable6=1
ModelName6=cog55
DisplayName6=Enus Cognoscenti 55
Enable7=1
ModelName7=cog552
DisplayName7=Enus Cognoscenti 55 Armored
Enable8=1
ModelName8=cognoscenti
DisplayName8=Enus Cognoscenti
Enable9=1
ModelName9=cognoscenti2
DisplayName9=Enus Cognoscenti Armored
Enable10=1
ModelName10=dinghy4
DisplayName10=Nagasaki Dinghy
Enable11=1
ModelName11=limo2
DisplayName11=Turreted Limo
Enable12=1
ModelName12=mamba
DisplayName12=Declasse Mamba
Enable13=1
ModelName13=nightshade
DisplayName13=Imponte Nightshade
Enable14=1
ModelName14=schafter3
DisplayName14=Benefactor Shafter V12 
Enable15=1
ModelName15=schafter4
DisplayName15=Benefactor Shafter LWB
Enable16=1
ModelName16=schafter5
DisplayName16=Benefactor Shafter V12 Armored
Enable17=1
ModelName17=schafter6
DisplayName17=Benefactor Shafter LWB Armored
Enable18=1
ModelName18=seashark3
DisplayName18=Speedophile Seashark
Enable19=1
ModelName19=speeder2
DisplayName19=Pegassi Speeder
Enable20=1
ModelName20=supervolito
DisplayName20=Buckingham SuperVolito
Enable21=1
ModelName21=supervolito2
DisplayName21=Buckingham SuperVolito Carbon
Enable22=1
ModelName22=toro2
DisplayName22=Lampadati Toro
Enable23=1
ModelName23=tropic2
DisplayName23=Shitzu Tropic
Enable24=1
ModelName24=valkyrie2
DisplayName24=Valkyrie MOD.0
Enable25=1
ModelName25=verlierer2
DisplayName25=Bravado Verlierer

3. Save and run the game! Enjoy :)

Sorry for low quality video, but I'm playing on low-end laptop ;) 

Enjoy the mod!