When he's not behind the wheel of his 650-horsepower Chevrolet, there's a good chance Hunter-Reay is cruising the azure ocean near his Fort Lauderdale home in his 36-foot Yellowfin Offshore, which he describes as "a go-fast, island-hopping fishing boat for when you need to get somewhere, quick."

Powered by three Honda marine engines producing over 700 horsepower, this particular watercraft's hull is rated for 75 mph. Maximum speed is achieved when the boat's massive fuel tank is close to empty: Hunter-Reay reports hitting 65 mph while running on fumes, a terrifying velocity for most humans skimming the ocean's surface, but one that's unlikely to faze the seasoned pro driver. [yellowfinyachts.com]