@CxAL Replace the .oiv ending with .zip and you can get the files from it.
Whilst you've attempted... something, there are several noticeable errors or further improvements with the ambulance. The large majority of the text is overstretched, likewise, with the SJA logo on the side, the red 'AMBULANCE' text does not contrast well with the green background and some parts of the skin is blurry.
Very good for a first attempt, the only thing I'd say is to make the blue less harsh - refer to this photo: https://www.daat.org/~/Handlers/GetImage.ashx?w=600&h=254&f=1&IDMF=0c13d2be-0191-4f39-9bf6-69e53d85eadd.
@dhrny Use Albo's Modding DLC Pack
The skin lacks some cutouts, the font on the skin itself is completely incorrect and not sized appropriately, alongside the roof markers that are also incorrectly sized. Other than that, the setup etc looks decent.
@He feng Change the window tint in your trainer.
@Ben79G here here
@aurum It's an error with the new patchday