This is the Ford F750 Ambulance.
Liveries are made by ThatGuyJacobee.

Installation 
Replace Option:
1.Go to mods\update\x64\dlcpacks\patchday1ng\dlc.rpf\x64\levels\gta5\vehicles.rpf
2. Enable edit mode
3. Put the files in there
4. All Done

FiveM Option:
1. Put in your resources folder
2. Open your server.cfg
3. Put this line in start f750
4. Save it
5. All Done

Addon Option:
1. Go to mods\update\x64\dlcpacks
2. Drag and drop the folder into it
3. Go to mods\update\update.rpf\common\data
4. Drag dlclist.xml to your desktop
5. Open dlclist.xml
6. Put this line in dlcpacks:/f750/
7. Save
8. Drag dlclist.xml back
9. All Done
10. The spawn code of the car is f750

Vehicle Model Used:
All credits for the model to J.Walker! Permission was given from him.

Credits:
ThatGuyJacobee,
elite-gaming.co.uk