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After speculation, spy shots and renderings, the 2010 Devon GTX finally made it's debut on the 18th hole of Pebble Beach, with the hope of ushering in a new era of American supercar dominance.

The California-based design studio and upstart automaker created the GTX as an American answer to the ultra-exclusive sports cars hailing from Europe. Housed within the steel structure and carbon fiber body lies an 8.4-liter V10 putting 650 hp (at 6,100 rpm) to the rear wheels through a six-speed manual gearbox.

When the GTX goes on sale early next year, the coupe will be available in two flavors – a standard version and a more track-focused variant – each equipped with a fully independent suspension (a real-time damping and ride-height adjustment system will be available in late 2010), obscured by 18x10-inch (front) and 19x13-inch (rear) wheels (19s and 20s are an available upgrade), wrapped in Z-rated Michelin Pilot Sport 2 rubber. Six piston brakes clamp onto 380mm discs in front, while four piston calipers grapple with 355mm rotors in the rear.

Devon plans to produce 36 cars each year, carrying a price tag of $500,000, with a racing package commanding another $25,000. Get all the details in the press release below the fold, and check out both galleries of the GTX below.