A practical speed of 160 mph (257 km/hr) has been reported, and "flat out", it will do about 186 mph (300 km/hr).
For 2010, the 5.4 liter DOHC has been increased to 540 horsepower, with a redline of 6250 RPM. The fifth and sixth gears have ratios of .74 and .50, down from .84 and .63, so the top speeds may increase accordingly.
The GT500 has a 6 speed gearbox, and easily reaches speeds in excess of 170 mph (274 kph).
FHP clocked a stock 08 GT500 at 158 and they weren't all the way down on the gas. This thing still had room to stretch it's legs.
The top speed of the 2010 Ford Shelby Cobra GT500 is 155 mph. The GT500 convertable can go from 155-157 mph.
The 2010 Ford Shelby-GT500 has a 6-speed manual.
The 2013 Ford Shelby-GT500 has a 6-speed manual.
The 2008 Ford Shelby-GT500 has a 6-speed manual.
The 2011 Ford Shelby-GT500 has a 6-speed manual.
The 2012 Ford Shelby-GT500 has a 6-speed manual.
The 2009 Ford Shelby-GT500 has a 6-speed manual.
The 2007 Ford Shelby-GT500 has a 6-speed manual.
The 2014 Ford Shelby-GT500 has a 6-speed manual.
The base price on the 2007 Shelby GT500 was 40,930
The 2014 Ford Shelby-GT500 has 32 valves.
The 2012 Ford Shelby-GT500 has a V8 engine.