The Ariel Atom.  Check out this vehicle from England:  http://www.arielatom.com.  Make sure you watch the video from Top Gear (an auto enthusiast television show).  This thing is amazingly fast!  Word has it that Jay Leno is first in line for those imported to the US.

 

Note:  This car is also featured in the game Project Gotham Racing 3 for the Xbox 360.