Hennessey Performance Engineering has unveiled the Z700, an extreme racetrack-oriented sportscar based on the Corvette ZR1. Among the main highlights are the power output of 705 hp and carbon-fiber wheels and body trims. It will be sold from 2010 at 204,000 USD.

Pagani has unveiled the Zonda Cinque Roadster, the open version of the model unveiled in 2008. The V12-powered supercar maintains the features of its coupé counterpart, with modifications to the carbon-titanium monocoque introduced to compensate for the absence of the roof.

The Racing Buggy by Italian carmaker Fornasari is an extreme 2-door sporty SUV with a 2+2 seat layout, an extreme exterior design and a 7.0 liter V8 engine. It will debut at the 2009 Frankfurt Motor Show andwill go on sale with a price of about 80,000 Euros.

Lamborghini has unveiled the Gallardo LP 550-2 Valentino Balboni, a special edition dedicated to the company's historic test driver, who since 1973 has tested almost every car built by the Italian carmaker. It will be produced in 250 units and will be the only rear wheel drive model.

UPDATED INFORMATION - The CanAm is a racing-oriented supercar developed by New Zealand based Hulme Supercars. Powered by a mid-mounted Chevrolet V8 engine, it aims at offering a Formula One-like driving experience. The limited series production is expected to begin in 2010.

To celebrate the 45th anniversary of the Mustang, Ford in partnership with Lee Iacocca and designer Michael Leone have created a limited series edition characterized by exterior, interior and mechanical modifications. It will be produced in 45 units.

The US Air Force in cooperation with Californian Galpin Auto Sports have built the X-1 Ford Mustang and the Vapor Dodge Challenger, two extreme high-tech concept cars that will be featured in the 2009 Super Car Tour mobile recruiting initiative.

Created by Spanish company GTA Motor, the Spano is a supercar powered by a rear-mounted 8.0 liter V10 engine. Among the features is the lightweight monocoque structure made of carbon-fiber, kevlar and titanium. It will be produced in 99 hand-made units.

The Q5 custom concetp is a sporty version of the SUV prepared by Audi for the 28th Wörthersee Tour, where the company celebrates its 100th anniversary. It is powered by a 408-hp TFSI V6 engine and features new wheels, lower ride height and a special matte paint finish.

The Veritas RS III is a modern interpretation of the racing cars produced by the German manufacturer in the 1950s. Powered by a BMW powertrain, it will be unveiled in London on next July and will be produced in 50 units.