Heres one of my last designs/renders , based in retrofuturism ( take an old subject and reform as a future one keeping its identifying elements) this is a Retrofuturistic Bicycle i made for the C4Dcafe Challenge "Dream Machines: Future concept vehicles) its based on an early bycicle design (around 1880's) but now the second wheel became a gyroscopic engine that gives balance to the machine. Project was made entirely in Cinema 4D and Photoshop for color correction.

here you can see another view:



and here a reference image and a wireframe:



i hope you like it,

Cheers,

Carlos