There's no single definitive 0-60 mph time for the 2006 Gran Turismo (GT) because the performance varies depending on the specific model (e.g., GT-R, GT-S, etc.), the condition of the vehicle, and testing methodology. Different sources will give you slightly different numbers.
You'll find reported times ranging from around 5.0 seconds to over 6.0 seconds. To find a more precise number, you'd need to specify the exact model and look at reputable automotive testing websites and magazines.
