Many car shows feature production vehicles of past and present. But at the Pacific Coast Dream Machine event in Half Moon Bay, Calif., the sky's the limit when it comes to determining which cars will be on display. From custom cars to tricked-out trucks, and races involving little more than an engine on wheels, the event is a hit for any automotive enthusiast who subscribes to the "build it and they will come" business model. The 19th annual show took place on Sunday, April 26, 2009.

The eco-friendly "Green Monster," built by the Blastolene Brothers, runs on bio-fuel.

Updated:Caption:Photo:Rob Barbutti
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Blastolene Brothers "Rodzilla" is powered by a twin-turbocharged Patton tank engine.

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It's not all automotive concoctions at the Pacific Coast Dream Machines. Any auto show is a reason to bring out this 1957 Chevy Bel Air classic.

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What started as an idea in a Florida bar is now an international sport. The goal of Unicycle Drag Racing is simple: whoever reaches 100 feet on one wheel over an unpaved surface the fastest wins.

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Automotive hobbyists and fans bring their custom cars that blend styles and eras.

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For $5, fans hitched a ride on the Monster Fire Truck.

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