The event is actually called the Mojave Magnum as it's 1.5 miles. Event registration is now open. Cost for one day is $299 and I am thinking of doing it. Bucket list item. http://www.mojavemile.com/
I plan on doing the Texas mile in my G2 this yr.
Its down in Beeville Tx every yr. old AFB runway you run a standing mile top speed.
Also on my bucket list is the Big Bend open road race. Like to try that on in my MACH1 sometime.