Hi, yes the above is for the standard box, 56 sounds about right, what you have to take in to consideration is that the figures above are from a gear speed calculator, which does not see wind resistence/aroedynamic drag of the car, gradients of the road etc etc. We all know that in reality a G40 can not achive 161.846mph in 5th but on paper that's what it's geared to do but take in to consideration all other factors and you get a considerably lower figure.