Buying AVGAS for cars etc

[sfGnome]

I recall back when I was an apprentice, one of the engineers telling stories of his mini cooper which was tuned for Avgas (he was a keen skydiver, so just filled it up once a week at the airport). Apparently his favourite trick was to take Yank servicemen our here on R&R for a drive through the mountains. Not only had they never seen a car that small, they'd never gone around a corner that fast either...