I'm not big on renderings because every design has so many different variables that drawings from insider descriptions rarely get more than basic components close to correct. In other words, I don't like most renderings because the real car won't look like the rendering.
This rendering is not perfect. There will be a wide vent in the front "hood" that is not shown here. I think it has only two vanes that will stretch across between the creases that lead down to the Flags on the fascia. The headlights are a complete guess and are very likely not correct, but because the artist started with an N'Ring photo, the proportions, locations, and shapes of the C8 design should be pretty close to what we will see (probably) at the 2019 NAIAS. So I thought this is a rendering worth sharing.