High-profile, national nonprofits require considerable resources to operate, especially if they’re performing a medical service, such as children’s hospitals and cancer research organizations. The American Heart Association (AHA) is one such entity conducting research on heart disease prevention, strokes, and other conditions. The AHA runs regular fundraising campaigns, but its latest might be the coolest one to date. There are no boring raffles or prizes here: The AHA is selling a super-limited number of custom Shelby GT500CR replicas.