I think it can be easily converted from these GTA IV models:

https://www.gtainside.com/en/gta4/cars/145267-2003-cadillac-sixteen-v1-3 (it's the better one imho)

https://www.gtaall.com/gta-4/cars/127933-cadillac-sixteen-v12.html

https://www.gtaall.com/gta-4/cars/127937-cadillac-sixteen-v12-pj4.html

https://gamemodels.ru/files/file/7677-cadillac-sixteen-concept-03 (3D model only)

Anyone interested in making this? I think it's far better than the previous model...

Thank you Potato-Mods!

I think it can be easily converted from that GTA IV mod actually: https://www.gtainside.com/en/gta4/cars/136427-2019-ssc-tuatara/ but I don't know how to do it.

Is somebody going to make this car as an add-on by any chance?