After holding the "World’s Fastest Production Car" title for the past year, the Shelby SuperCars’ Ultimate Aero is receiving several refinements for the 2009 model year. The SSC engineering team equipped the 2009 Ultimate Aero with a 15% increase in horsepower, a revamped front fascia design, and an array of important interior upgrades. The most substantial change is an SSC-designed, 1-piece billet aluminum engine block. A milestone for the limited-production automobile manufacturer, the new block improves structural integrity and oiling capabilities allowing SSC to boost the power output to 1287 horsepower while improving durability.