[Purist]

Red, motorsport is an exercise of efficiency, which might be kind of applicable if you're trying to make your road cars more efficient.

I bet you could make a dent in exposure if Audi, GM, and/or Chrysler (if they joined) sponsored adverts during CSI: Miami, Numbers, Law & Order, and Heroes (i.e. primetime programming) the week before the race broadcast. Do several primetime spots during the preceding week on the broadcasting network, and you sure as heck should see some impact in viewership, which should entice further sponsors and manufacturers to take a look.

You never know until you take a shot. Not to mention, NASCAR ratings have been reported down the past couple years. Someone has to take that big step to up the exposure of sportscar. Between those seven manufacturers in ALMS (Chevrolet, Audi, Mazda, Panoz, Porsche, Acura, and Ferrari) there's more than enough capital to "make" the ALMS' presence just as inescapable as NASCAR's, which would make the series a VERY worthwhile investment if someone were to step up and do what is necessary.