Top gear rollon is actually everyday very useable stuff, if you ride on the road.. you use it everytime you pass..
I like using it as an example when people dont understand why HD and Beemer twins are still so popular.. Riders of high revving fours often miss how much they would be using mid range pulling power if they had a lot more of it.
But if they never experienced it, can be hard to understand or illustrate.. ever wonder why the newer Goldwings now have so much torque?