Just don't forget to install the CB, laser jammers, police scanners, radar detector, police lights, traffic light changer, siren, binoculars and multiple GPS systems. Big fuel tank too - should have 400-500 miles of range.
https://www.youtube.com/watch?v=TXIzsU3AtBs
Review of the electronics on an Audi R8 that ran Bullrun this last year.
https://www.youtube.com/watch?v=JxRLy...eature=channel rundown on the goodies on Alex Roy's M5 when he did the NY-LA run.
http://www.torquenstein.net/technology.htm Torquenstein's list installed on the winning car (Tied with Roy/Ross) 06 Gumball Rally