The Chevy SSR and Holden Efijy Hood cams are the highest and farthest forward hoods in the game, in your mod, they're both still INSIDE the car.
The Chrysler 300C Hood_Back cam is the farthest back cam in the game, it's also still INSIDE the car.
The Holden Efijy Cockpit cam is the ONLY centered Cockpit cam I could find, and it's blocking most of the road view even at max seat slider height.
There are NO Cockpit_Back cams that are high enough to see the road behind you, the 300C is the highest, and 75% of the screen is still blocked.
Check the attached ingame photo. The cars sitting next to the SHO are the Toyota Celica GT-Four (RHD Version), and Tool's BMW M3 E46 GTR Street Version. That real BMW has a wheelbase that's only 5 inches shorter than the SHO's, but ingame, the SHO dwarfs the M3.
It's not just the wheel size, it's the size of the whole car, once you fix that, the rest will fall in line as it should and there will be a bunch of properly fitting cameras, and the rims should be resized with the car. Right now the rims are looking too big because the whole car is too big.