I've just discovered that Rammsteins' Feuer Frei! is perfectly suited for blasting along at 147.5 kph, when played at close to the pain threshold.

It seems to attune to some tertiary brainwave, and just drives you along, perfectly synching to that ideal speed.

I tried explaining all this to the nice Police Officer with the pretty blue flashing lights, and when I told him "Rammstein made me do it!" he gave me a pretty little printed reminder of the occasion with the ideal Feuer Frei! speed measurement printed on it.

Oh, it also does wonders for troublesome earwax, I've found.