MedicalConspiracies- WIKISPEED Modular Vehicle - 149 MPH, 104 MPG CITY, 114 MPG HWY., PASSE D 5 GOLD STAR CRASH TEST, $25,000.00

It can be modified to be a sports car, sedan. SUV, van.  @ < $20K in mass production.

 

http://www.wikispeed.com/NotableFacts