D.U.I. Nascar

Simply put, drunken stock car racing. Limit the speeds to around 40mph, reinforce all the cars, and make the courses a little more visually challenging. This can be done with awkward lighting conditions, optical-illusionary paintings along the walls, curved mirrors on the cars, or many other means. Most importantly, required a blood alcohol level of double the legal limit to participate. Have racing teams switch off drivers every so often so the driver of each car doesn't get too sober during long races. Allow the drivers to have a drink of choice in the car while they race. Guaranteed to result in more accidents with fewer injuries than traditional racing. Also, due to the lack of vehicle performance, the cars will be very cheap to buy so expenses for racing teams will not be as crazy as one would think, considering a very likely need to replace cars at least once per race. VERY PROFITABLE... consider the endorsements and the good PR for beer and liquor producers(i.e. "This is why drinking and driving don't mix")