top speed, cut off fuel supply?

[banksee]

my bmw is an automatic transmission with the paddle shifters. it says in the manual that if your shifting and let it go into the red line it cuts off the fuel supply to protect the engine which i understand but at 150mph which is the limited top speed, the car is in 6th gear and is about to red line it cant shift up anymore will it cut the fuel supply off? basically what I'm saying is what happens if it red-lines in 6th gear, will it cut off the fuel supply? or will it get just up to the red-line and not move anymore because that's the limited top speed or what?