The first MOC is Barricade from the first live-action Transfomers film (a Saleen S281 dressed as a police car). The Speed Champions GT-R inspired to have a go at creating this, since like the GT-R, this Mustang is a fairly boxy car.
It took a lot a lot tearing down and rebuilding to get the backend and spoiler close enough for me to be happy with it. The narrow tailpipes on the real car were a bit of a problem, until I realised I using two tiles was better than anything else I had tried.
I think I'm happy enough to build this in IRL.
The next MOC is Barricade (yet again) is from the fifth Transformers live-action film (The Last Knight was title of it I think). This one is sillier (as is the real prop car), but I tried for an accurate rendition of the real car, a highly modified sixth generation Mustang, again dressed as a police car.
I'm not happy with the back, I tried to get the rear lights to to be angled and it worked, but it left the back too gappy, so I've settled for this at the moment: