variations of demolition derby filmed in Orlando, FLA. The Speed Channel also has aired team demolition derbies in 2005. Cable TV's exposure has led to renewed interest in the demolition derby. In 2006, the partners of Mike Weatherford Promotions (Mike Weatherford and Dustin Swayne) started DerbyMadness.com while promoting the NAPA Auto Parts Crash for Cash Series. The first annual final show paid out $5,000.00 to the winner of the series. Before competing in the final show, derby drivers across several states had to qualify at any one of the participating NAPA Crash for Cash qualifying derbies. There were over 100 cars in the final show. The series was a success and continues to grow every year. The 2007 series money was doubled, so competition was expected to increase for the 2008 series. Vehicles Competitors have traditionally used full-size, American-made sedans and station wagons, especially those from the 1960s and 1970s, which are larger, heavier, and had more robust frames than later full-size vehicles. The 1964–1966 Imperial achieved near-legendary status for its crashworthiness, and it is still banned from most derby events. Scrap vehicles are purchased from junkyards and private owners, usually for less than US$500, though some select (and rust-free) mid-1970s sedans and station wagons may go for more than $1,000. Vehicles are often patched up and re-used for several events. With the dwindling availability of these older vehicles, smaller full-sized vehicles of the late 1980s and 1990s are more frequently encountered today. A separate class of demolition derby for compact cars is increasing in popularity. Compact car events have the advantage of an abundant supply of usable vehicles, which also tend to be more mobile and thus, more entertaining to fans. Being largely front-wheel drive vehicles, their back ends can sustain considerable amounts of damage before the vehicle is immobilized. However, this increased speed, coupled with the fact that compact cars tend to be less crashworthy, makes injuries more frequent. Other versions of the sport using combine harvesters and riding lawn mowers have been practiced in various parts of the world. Larger vehicles, such as pickup trucks and SUVs, were rarely used in demolition derby (though school bus demolitions have long been a popular exception) but have recently become popular in demolition events. Recently a new class for minivans has been added to some derbies because of the abundance of older vehicles. Motorhome demolition derbies are another variation. The