I had fun using my SM57 as an electromagnetic pickup for my smartphone processor. Using the recording as raw material I made just little adjustments and doubled the track into stereo by using the frequency range recorded at 22-44kHz (which was cut to match the length of the original. A third layer contains a even further downsampled version.
Anyone interested in the 96kHz/24bit raw material let me know. And let me know if you find the car :P