And I remember back in the very late 90's when the special excise on Avgas was removed and for quite some time it was cheaper than the 91 octane Unleaded for cars!
84cpl to be exact, against 89cpl for unleaded.
As I then had an early model Toyota Celica with a 'somewhat modified' twin cam engine (about three quarter race actually) which ran best on Avgas and I was working at a regional airport, well I was quite happy!
Times change!