I did this concept car some time ago for a Challange at C4DCafe of "Dream Machines-Futuristic Vehicles " based somehow in how the original VW Beetle would look in the year 2054. Here are the specifications that were part of the challenge:

Dimensions: L 3.17m W 1.4m H 2.25m
Aceleration: 0-100 in 5 sec. Max Speed 300 KM/h
NeoPlasma Magnetic Engine - Laser Gyroscope Stabilization
2700Kg/m2 Dense BioSkin Tires - NeoCrete Liquid Metal body
NeuroDrive Guide System

All modeled and rendered in Cinema 4D ( using Advance Render ) , besides WV Logo and fuel tank icon , all textures are procedural. color correction in Photoshop

I hope you like it

Cheers,

Carlos