What One Car (doesn't have to be a Mopar) Turned You Into A Gearhead?

'54 Plymouth Savoy. It had a 3 speed with overdrive and once in a while the overdrive would quit working and dad would have to pull it and fiddle with it to get it working again. He let me "help" and I thought it was so cool to do that. Uncle Marvin's '58 300D got me hooked on muscle. Blew me away 'cause it was faster than his Harley.