Shockwave Motors, Inc. will show the new Defiant Xtreme EV3 Roadster© at EarthFest Celebration taking place at the Knoxville's World's Fair Park on April 26th. The all-electric Xtreme Roadster has a top speed of almost 100 MPH and can accelerate from 0 to 60 MPH in about 7 seconds! The roadster costs about 1.5 Cents per Mile to mile to operate and gets the Equivalent of 225 MPG!