Building a well-suited vehicle for competitive road racing is a never-ending search for the perfect combination of suspension design, tires, gear ratios, braking points, steering path and a hundred other variables. Thanks to FastLapSim5™, you can accurately simulate the complex interaction of forces, speeds, and accelerations generated by stock, high-performance, or all-out race vehicles. This advanced software also features the Pro Tools™ Kit, which includes such enhanced features as DataZones™, real time data display, spring/damper calculator, ProData™ Display and ProPrinting™. • Advanced road racing software determines best possible elapsed time for any track - with any number if turns, ovals, or autocrosses • Pick from 40+ of the world's most well-known tracks or design any closed course using innovative, built-in TrackEditor™ • Determines optimum driving path, shifting and braking points, aerodynamics, throttle positions, gear ratios and much more • Software includes cutting-edge Pro Tools™ Kit that extends the functionality of many program features • Easy-to-use interface allows comparison between as many as 4 vehicles at once - anything from stock cars to street racers to NASCAR • Windows 7 Compatible