I had a Dodge Dart with a slant 6. Got it from my father in law. I would still be driving it if some drunk on a three wheel motor bike didn't crash into the front at 40 mph. (Car was parked)
I had a Dodge Aspen with a Slant 6.
The car rusted out completely, it was a real POS. The engine, however, is likely still running in some form or other.
Push-button tranny controls. Self-cleaning engine - inside crankcase gunk slid down the slant and stayed away from the moving parts. Ran fo-evah.