What’s the best deal you’ve gotten on cars or parts

Mint green factory original 1970 340 6 pack Challenger with factory glitter shaker hood. 18K miles. Bought off the original owner in '74 who didn't like the gas mileage. Car ran and looked perfect, paid $2000.00....two weeks later I needed money real bad, had to sell it $2300.00. One of the biggest mistakes of my life!!!!:mad::mob::soapbox::BangHead::BangHead::BangHead: