This is arguably a bug, but I think it's the coolest thing ever. (1) Come to a full stop. (2) Tune your AM radio -- your otherwise worthless, static-filled, analog, crappy AM radio -- to the lowest station number on which you don't get signal. For me it's 530 -- YMMV. Anything in the 530 to 620 kHz range seems to work pretty well. (3) Crank up the volume. (4) Crank up the bass. (5) Floor it! Love it, love it, love it. It's like someone's spooling up the warp drive.