There is one problem with the fake vinyl carbon, especially if stuck on a light coloured car, and thats stone chips. The vinyl will be damaged by stones, in just the same way the paint is, although its more resilient. However should a stone large enough dig through the vinyl then you'll have to remove the whole lot and re-apply since chances are that in removing the vinyl the paint may be damaged in the process.

Think I'm going to find a company local that does carbon vinal wrapping and just get it done.

If it looks good then go the whole lot. Roof etc.

Cheers all