NASCAR and pollution

Today I was very surprised to learn that the "bunch of high school dropouts driv[ing] in circles for 500 miles" in NASCAR races drive cars that get 4 mpg, so that roughly 5375 gallons of leaded gas are burned in one race, not including practice and qualifying.

That sounds pretty appalling, but if you do the math, assuming 300,000 fans at 3 to a car getting 20 mpg driving an average of 60 miles to get to the race, that's 300,000 gallons of gas burned up by the fans.

In other news, if 3% fewer people die each year in cities that reduce their soot per square meter of air by one microgram, then potentially 75,000 deaths per year in the US could be averted.

I'm guessing the 75,000 people who don't die still aren't going to be feeling well enough to attend a lot of NASCAR races.