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2010 Chevrolet Corvette ZR1Hennessey Z700 Limited Edition Hennessey Performance Engineering has introduced its new 705-hp Z700 upgrade package for the 2010 Chevrolet Corvette ZR1 for those that believe that “too much horsepower is never enough.” The world’s fastest and most powerful production Corvette, the 638 bhp ZR1 has become the pinnacle of American sports cars. For most ZR1 owners, having a car capable of Nurburgring times of 7:26 is more than enough to satisfy performance to satisfy their need for speed. However, for the select few who subscribe to the mantra of “Too much horsepower is never enough” Hennessey Performance Engineering (HPE) has something special in store for them in 2010. HPE is happy to introduce the company’s 705 bhp Z700 upgrade package for the 2010 ZR1. The Z700 performance package carries an upgraded engine supercharger, exhaust and an air induction systems. Other performance enhancing upgrades include lightweight carbon fiber wheels , Z-Aero carbon fiber f...

A bigger stick for the soft-spoken supercar, and a price to match. By making available an R8 with a monster 525-hp V-10 engine—complementing the 420-hp V-8 model that was introduced two years ago—Audi has elevated its exotic-looking two-seater from “almost-a-supercar” status to a true competitor in the high-performance realm above mere sports cars. The 105-hp increase comes from a 5.2-liter, direct-injection V-10 that is virtually identical to the engine found in the Lambor ghini Gallardo LP560-4. Unique engine programming and intake and exhaust systems are the chief differences in the Audi engine over the Italian job, although both engines are made in the same plant in Hungary. We’re told that the V-10 weighs just 68 pounds more than the V-8, and that fuel economy with the bigger engine will worsen by only 1 mpg. Output is listed by Audi at 525 horsepower and 391 pound-feet of torque, 27 horses and seven pound-feet fewer than in the Lambo, but we suspect some of that difference is sim...