SFX listed, in no particular order, the Top 10 SF Sound FX Ever, having Supernatural Chevy Impala on the list. "Not only is the Winchesters’ 1967 Chevrolet Impala a beautiful thing to look at […] it also comes complete with a deep, growly, rumbling rrrrrrrRRRRRR of an engine and squeaky, clunky doors which open and close with a satisfying CRUNCH that make our teeth go funny."
Source: SFX.