There will be a Grand Prix in Las Vegas sometime between Friday 6 April 2007, and Sunday 8 April.
Have you ever read the same sentence a few times, and still not known what you just read? Because that is how I feel after viewing the official website for the Vegas Grand Prix. That is why I am unsure when the actual race is, though I suspect it is on Sunday 8 April.
I downloaded a pdf of the race course, but the background on the pdf is red, (not printer friendly).
The best I can do as far as information goes is to provide a link to the official website of the 2007 Vegas Grand Prix.