GTA Motor returned triumphant to the Geneva Motor Show 2012, where it launched what it's calling the definitive version of its high performance GTA Spano supercar, which could be a significant competitor with established top-tier supercars.

GTA Motor, the little known sports car manufacturer from Valencia, Spain, debuted a prototype of the GTA Spano at last year's Geneva Motor Show, and the jury was out on whether the underdog company could actually bring its vision to fruition. GTA Motor proved the skeptics wrong.

The GTA Spano at this year's Geneva Motor Show is a production ready vehicle, and the company says it will begin delivering its first units by the end of the year. The GTA Spano is the first production car from the company, and it's an automotive Hail Mary pass, as the company has position the car to compete directly with the best of the best in supercars, including the McLaren MP4-12C, Lamborghini Aventador LP 700-4 and Ferrari's new F12berlinetta.

The GTA Spano, which looks a bit like a beefier McLaren MP4-12C, is capable of achieving speeds in excess of 217 mph and is powered by an 8.3 liter, supercharged V10 capable of producing an astounding 820 horsepower and a 0-62 mph time under three seconds, says the company. Those numbers seem credible, as the car weighs in at a svelte 2976 lbs.

Much of the weight savings come from the strong, lightweight chassis constructed from carbon fiber, titanium and Kevlar. GTA Motor claims that the car is easy to drive despite the size of its engine, but there has not been much evidence either for or against this assertion.

It's unclear how much the Spanish supercar will cost - according to the New York Times, the company intimated a price around $950,000 last year, but Spanish newspapers have been reporting a price closer to $650,000. GTA Motor plans to sell the GTA Spano in China, the United Arab Emirates, the United States, Russia, Germany, Italy, Hong Kong and New Zealand.