This tutorial shows you an easy way to create a wireframe from a 3D model in minutes.
There are multiple ways for rendering wireframes in Cinema 4D.
You can use the ‘Edge to spline’ command and sweep NURBS (Mustapha FERSAOUI has a good tutorial about this method).
You can also use Sketch & Toon or the Atom Array method (see Emir Bojorquez tutorial on lesterbanks site)
Here is a cheat sheet with the main elements and parameters you’ll need to create your own wireframe.